github.com/mattermost/mattermost-server

Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v8.0.0-20250721062209-4952acea88ce before v8.0.0-20260316060126-bc1a2b34b1f9.

Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server

Mattermost fails to properly validate team membership when processing channel mentions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

Mattermost fails to sanitize sensitive data in WebSocket messages in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251210191531-cd17b61de41b.

Mattermost fails to enforce invite permissions when updating team settings in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251215190648-6404ab29acc0.

Mattermost fails to properly validate login method restrictions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251212052346-61651b0df7ea.

Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.

Mattermost Server allows an attacker to specify a full pathname of a log file in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.4-0.20170404171331-0b5c0794fdcb.

Mattermost has missing redirect URL validation in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.5-0.20251016131338-dad6bd7a1509.

CVE-2017-18901 in github.com/mattermost/mattermost-server

Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jira.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-plugin-jira before v4.4.1.

Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.

Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.4.

CVE-2017-18870 in github.com/mattermost/mattermost-server

Mattermost fails to validate user permissions in Boards in github.com/mattermost/mattermost

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Server is vulnerable to a Denial of Service attack through invite_people command in github.com/mattermost/mattermost-server

Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/v5 before v5.3.2-0.20250815165020-c8d66301415d; github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20250815165020-c8d66301415d.

Mattermost Server exposes sensitive information about team URLs via an API in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v2.0.1-0.20160310160916-26ad6d2c7696.

Mattermost Server: initial_load API exposes unnecessary information in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.1.1.

Guest user can discover active public channels in github.com/mattermost/mattermost-server

Mattermost Playbooks fails to validate the uniqueness and quantity of task actions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate permissions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v9.11.16.

Mattermost server allows authenticated user to delete arbitrary post in github.com/mattermost/mattermost-server

Mattermost Server vulnerable to application crash from attacker-generated large response in github.com/mattermost/mattermost-server

Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgery in github.com/mattermost/mattermost-server

Mattermost Server allows user to get private channel names in github.com/mattermost/mattermost-server

Mattermost incorrectly issues two sessions when using desktop SSO in github.com/mattermost/mattermost-server

Mattermost fails to strip embeds from metadata when broadcasting posted events in github.com/mattermost/mattermost-server

Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server

Resource exhaustion in Mattermost in github.com/mattermost/mattermost-server

Insecure plugin handling in Mattermost in github.com/mattermost/mattermost-server

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Improper Control of a Resource Through its Lifetime in Mattermost in github.com/mattermost/mattermost-server

Mattermost users could access some sensitive information via API call in github.com/mattermost/mattermost-server

Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost

Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost viewing archived public channels permissions vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v7.8.10; github.com/mattermost/mattermost/server/v8 before v8.1.1.

Mattermost allows demoted guests to change group names in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost Server Improper Access Control in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.11.

Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v8.0.0-20250721062209-4952acea88ce before v8.0.0-20260316060126-bc1a2b34b1f9.

Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server

Mattermost fails to properly validate team membership when processing channel mentions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

Mattermost fails to sanitize sensitive data in WebSocket messages in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251210191531-cd17b61de41b.

Mattermost fails to enforce invite permissions when updating team settings in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251215190648-6404ab29acc0.

Mattermost fails to properly validate login method restrictions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251212052346-61651b0df7ea.

Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.

Mattermost Server allows an attacker to specify a full pathname of a log file in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.4-0.20170404171331-0b5c0794fdcb.

Mattermost has missing redirect URL validation in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.5-0.20251016131338-dad6bd7a1509.

CVE-2017-18901 in github.com/mattermost/mattermost-server

Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jira.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-plugin-jira before v4.4.1.

Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.

Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.4.

CVE-2017-18870 in github.com/mattermost/mattermost-server

Mattermost fails to validate user permissions in Boards in github.com/mattermost/mattermost

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Server is vulnerable to a Denial of Service attack through invite_people command in github.com/mattermost/mattermost-server

Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/v5 before v5.3.2-0.20250815165020-c8d66301415d; github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20250815165020-c8d66301415d.

Mattermost Server exposes sensitive information about team URLs via an API in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v2.0.1-0.20160310160916-26ad6d2c7696.

Mattermost Server: initial_load API exposes unnecessary information in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.1.1.

Guest user can discover active public channels in github.com/mattermost/mattermost-server

Mattermost Playbooks fails to validate the uniqueness and quantity of task actions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate permissions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v9.11.16.

Mattermost server allows authenticated user to delete arbitrary post in github.com/mattermost/mattermost-server

Mattermost Server vulnerable to application crash from attacker-generated large response in github.com/mattermost/mattermost-server

Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgery in github.com/mattermost/mattermost-server

Mattermost Server allows user to get private channel names in github.com/mattermost/mattermost-server

Mattermost incorrectly issues two sessions when using desktop SSO in github.com/mattermost/mattermost-server

Mattermost fails to strip embeds from metadata when broadcasting posted events in github.com/mattermost/mattermost-server

Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server

Resource exhaustion in Mattermost in github.com/mattermost/mattermost-server

Insecure plugin handling in Mattermost in github.com/mattermost/mattermost-server

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Improper Control of a Resource Through its Lifetime in Mattermost in github.com/mattermost/mattermost-server

Mattermost users could access some sensitive information via API call in github.com/mattermost/mattermost-server

Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost

Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost viewing archived public channels permissions vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v7.8.10; github.com/mattermost/mattermost/server/v8 before v8.1.1.

Mattermost allows demoted guests to change group names in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost Server Improper Access Control in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.11.

Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v8.0.0-20250721062209-4952acea88ce before v8.0.0-20260316060126-bc1a2b34b1f9.

Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server

Mattermost fails to properly validate team membership when processing channel mentions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

Mattermost fails to sanitize sensitive data in WebSocket messages in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251210191531-cd17b61de41b.

Mattermost fails to enforce invite permissions when updating team settings in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251215190648-6404ab29acc0.

Mattermost fails to properly validate login method restrictions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251212052346-61651b0df7ea.

Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.

Mattermost Server allows an attacker to specify a full pathname of a log file in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.4-0.20170404171331-0b5c0794fdcb.

Mattermost has missing redirect URL validation in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.5-0.20251016131338-dad6bd7a1509.

CVE-2017-18901 in github.com/mattermost/mattermost-server

Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jira.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-plugin-jira before v4.4.1.

Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.

Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.4.

CVE-2017-18870 in github.com/mattermost/mattermost-server

Mattermost fails to validate user permissions in Boards in github.com/mattermost/mattermost

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Server is vulnerable to a Denial of Service attack through invite_people command in github.com/mattermost/mattermost-server

Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/v5 before v5.3.2-0.20250815165020-c8d66301415d; github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20250815165020-c8d66301415d.

Mattermost Server exposes sensitive information about team URLs via an API in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v2.0.1-0.20160310160916-26ad6d2c7696.

Mattermost Server: initial_load API exposes unnecessary information in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.1.1.

Guest user can discover active public channels in github.com/mattermost/mattermost-server

Mattermost Playbooks fails to validate the uniqueness and quantity of task actions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate permissions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v9.11.16.

Mattermost server allows authenticated user to delete arbitrary post in github.com/mattermost/mattermost-server

Mattermost Server vulnerable to application crash from attacker-generated large response in github.com/mattermost/mattermost-server

Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgery in github.com/mattermost/mattermost-server

Mattermost Server allows user to get private channel names in github.com/mattermost/mattermost-server

Mattermost incorrectly issues two sessions when using desktop SSO in github.com/mattermost/mattermost-server

Mattermost fails to strip embeds from metadata when broadcasting posted events in github.com/mattermost/mattermost-server

Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server

Resource exhaustion in Mattermost in github.com/mattermost/mattermost-server

Insecure plugin handling in Mattermost in github.com/mattermost/mattermost-server

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Improper Control of a Resource Through its Lifetime in Mattermost in github.com/mattermost/mattermost-server

Mattermost users could access some sensitive information via API call in github.com/mattermost/mattermost-server

Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost

Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost viewing archived public channels permissions vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v7.8.10; github.com/mattermost/mattermost/server/v8 before v8.1.1.

Mattermost allows demoted guests to change group names in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost Server Improper Access Control in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.11.

Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v8.0.0-20250721062209-4952acea88ce before v8.0.0-20260316060126-bc1a2b34b1f9.

Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server

Mattermost fails to properly validate team membership when processing channel mentions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

Mattermost fails to sanitize sensitive data in WebSocket messages in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251210191531-cd17b61de41b.

Mattermost fails to enforce invite permissions when updating team settings in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251215190648-6404ab29acc0.

Mattermost fails to properly validate login method restrictions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251212052346-61651b0df7ea.

Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.

Mattermost Server allows an attacker to specify a full pathname of a log file in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.4-0.20170404171331-0b5c0794fdcb.

Mattermost has missing redirect URL validation in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.5-0.20251016131338-dad6bd7a1509.

CVE-2017-18901 in github.com/mattermost/mattermost-server

Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jira.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-plugin-jira before v4.4.1.

Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.

Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.4.

CVE-2017-18870 in github.com/mattermost/mattermost-server

Mattermost fails to validate user permissions in Boards in github.com/mattermost/mattermost

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Server is vulnerable to a Denial of Service attack through invite_people command in github.com/mattermost/mattermost-server

Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/v5 before v5.3.2-0.20250815165020-c8d66301415d; github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20250815165020-c8d66301415d.

Mattermost Server exposes sensitive information about team URLs via an API in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v2.0.1-0.20160310160916-26ad6d2c7696.

Mattermost Server: initial_load API exposes unnecessary information in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.1.1.

Guest user can discover active public channels in github.com/mattermost/mattermost-server

Mattermost Playbooks fails to validate the uniqueness and quantity of task actions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate permissions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v9.11.16.

Mattermost server allows authenticated user to delete arbitrary post in github.com/mattermost/mattermost-server

Mattermost Server vulnerable to application crash from attacker-generated large response in github.com/mattermost/mattermost-server

Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgery in github.com/mattermost/mattermost-server

Mattermost Server allows user to get private channel names in github.com/mattermost/mattermost-server

Mattermost incorrectly issues two sessions when using desktop SSO in github.com/mattermost/mattermost-server

Mattermost fails to strip embeds from metadata when broadcasting posted events in github.com/mattermost/mattermost-server

Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server

Resource exhaustion in Mattermost in github.com/mattermost/mattermost-server

Insecure plugin handling in Mattermost in github.com/mattermost/mattermost-server

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Improper Control of a Resource Through its Lifetime in Mattermost in github.com/mattermost/mattermost-server

Mattermost users could access some sensitive information via API call in github.com/mattermost/mattermost-server

Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost

Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost viewing archived public channels permissions vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v7.8.10; github.com/mattermost/mattermost/server/v8 before v8.1.1.

Mattermost allows demoted guests to change group names in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost Server Improper Access Control in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.11.

Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v8.0.0-20250721062209-4952acea88ce before v8.0.0-20260316060126-bc1a2b34b1f9.

Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server

Mattermost fails to properly validate team membership when processing channel mentions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

Mattermost fails to sanitize sensitive data in WebSocket messages in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251210191531-cd17b61de41b.

Mattermost fails to enforce invite permissions when updating team settings in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251215190648-6404ab29acc0.

Mattermost fails to properly validate login method restrictions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251212052346-61651b0df7ea.

Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.

Mattermost Server allows an attacker to specify a full pathname of a log file in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.4-0.20170404171331-0b5c0794fdcb.

Mattermost has missing redirect URL validation in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.5-0.20251016131338-dad6bd7a1509.

CVE-2017-18901 in github.com/mattermost/mattermost-server

Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jira.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-plugin-jira before v4.4.1.

Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.

Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.4.

CVE-2017-18870 in github.com/mattermost/mattermost-server

Mattermost fails to validate user permissions in Boards in github.com/mattermost/mattermost

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Server is vulnerable to a Denial of Service attack through invite_people command in github.com/mattermost/mattermost-server

Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/v5 before v5.3.2-0.20250815165020-c8d66301415d; github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20250815165020-c8d66301415d.

Mattermost Server exposes sensitive information about team URLs via an API in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v2.0.1-0.20160310160916-26ad6d2c7696.

Mattermost Server: initial_load API exposes unnecessary information in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.1.1.

Guest user can discover active public channels in github.com/mattermost/mattermost-server

Mattermost Playbooks fails to validate the uniqueness and quantity of task actions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate permissions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v9.11.16.

Mattermost server allows authenticated user to delete arbitrary post in github.com/mattermost/mattermost-server

Mattermost Server vulnerable to application crash from attacker-generated large response in github.com/mattermost/mattermost-server

Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgery in github.com/mattermost/mattermost-server

Mattermost Server allows user to get private channel names in github.com/mattermost/mattermost-server

Mattermost incorrectly issues two sessions when using desktop SSO in github.com/mattermost/mattermost-server

Mattermost fails to strip embeds from metadata when broadcasting posted events in github.com/mattermost/mattermost-server

Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server

Resource exhaustion in Mattermost in github.com/mattermost/mattermost-server

Insecure plugin handling in Mattermost in github.com/mattermost/mattermost-server

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Improper Control of a Resource Through its Lifetime in Mattermost in github.com/mattermost/mattermost-server

Mattermost users could access some sensitive information via API call in github.com/mattermost/mattermost-server

Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost

Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost viewing archived public channels permissions vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v7.8.10; github.com/mattermost/mattermost/server/v8 before v8.1.1.

Mattermost allows demoted guests to change group names in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost Server Improper Access Control in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.11.

Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v8.0.0-20250721062209-4952acea88ce before v8.0.0-20260316060126-bc1a2b34b1f9.

Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server

Mattermost fails to properly validate team membership when processing channel mentions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

Mattermost fails to sanitize sensitive data in WebSocket messages in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251210191531-cd17b61de41b.

Mattermost fails to enforce invite permissions when updating team settings in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251215190648-6404ab29acc0.

Mattermost fails to properly validate login method restrictions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251212052346-61651b0df7ea.

Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.

Mattermost Server allows an attacker to specify a full pathname of a log file in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.4-0.20170404171331-0b5c0794fdcb.

Mattermost has missing redirect URL validation in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.5-0.20251016131338-dad6bd7a1509.

CVE-2017-18901 in github.com/mattermost/mattermost-server

Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jira.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-plugin-jira before v4.4.1.

Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.

Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.4.

CVE-2017-18870 in github.com/mattermost/mattermost-server

Mattermost fails to validate user permissions in Boards in github.com/mattermost/mattermost

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Server is vulnerable to a Denial of Service attack through invite_people command in github.com/mattermost/mattermost-server

Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/v5 before v5.3.2-0.20250815165020-c8d66301415d; github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20250815165020-c8d66301415d.

Mattermost Server exposes sensitive information about team URLs via an API in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v2.0.1-0.20160310160916-26ad6d2c7696.

Mattermost Server: initial_load API exposes unnecessary information in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.1.1.

Guest user can discover active public channels in github.com/mattermost/mattermost-server

Mattermost Playbooks fails to validate the uniqueness and quantity of task actions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate permissions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v9.11.16.

Mattermost server allows authenticated user to delete arbitrary post in github.com/mattermost/mattermost-server

Mattermost Server vulnerable to application crash from attacker-generated large response in github.com/mattermost/mattermost-server

Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgery in github.com/mattermost/mattermost-server

Mattermost Server allows user to get private channel names in github.com/mattermost/mattermost-server

Mattermost incorrectly issues two sessions when using desktop SSO in github.com/mattermost/mattermost-server

Mattermost fails to strip embeds from metadata when broadcasting posted events in github.com/mattermost/mattermost-server

Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server

Resource exhaustion in Mattermost in github.com/mattermost/mattermost-server

Insecure plugin handling in Mattermost in github.com/mattermost/mattermost-server

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Improper Control of a Resource Through its Lifetime in Mattermost in github.com/mattermost/mattermost-server

Mattermost users could access some sensitive information via API call in github.com/mattermost/mattermost-server

Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost

Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost viewing archived public channels permissions vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v7.8.10; github.com/mattermost/mattermost/server/v8 before v8.1.1.

Mattermost allows demoted guests to change group names in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.

Mattermost Server Improper Access Control in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.11.

Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v8.0.0-20250721062209-4952acea88ce before v8.0.0-20260316060126-bc1a2b34b1f9.

Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server

Mattermost fails to properly validate team membership when processing channel mentions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

Mattermost fails to sanitize sensitive data in WebSocket messages in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251210191531-cd17b61de41b.

Mattermost fails to enforce invite permissions when updating team settings in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251215190648-6404ab29acc0.

Mattermost fails to properly validate login method restrictions in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20251212052346-61651b0df7ea.

Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.

Mattermost Server allows an attacker to specify a full pathname of a log file in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.4-0.20170404171331-0b5c0794fdcb.

Mattermost has missing redirect URL validation in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.5-0.20251016131338-dad6bd7a1509.

CVE-2017-18901 in github.com/mattermost/mattermost-server

Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jira.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-plugin-jira before v4.4.1.

Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost before v10.11.7-0.20251106103514-3b05384dd014; github.com/mattermost/mattermost-server before v10.11.7-0.20251106103514-3b05384dd014.

Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.4.

CVE-2017-18870 in github.com/mattermost/mattermost-server

Mattermost fails to validate user permissions in Boards in github.com/mattermost/mattermost

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Server is vulnerable to a Denial of Service attack through invite_people command in github.com/mattermost/mattermost-server

Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost/v5 before v5.3.2-0.20250815165020-c8d66301415d; github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20250815165020-c8d66301415d.

Mattermost Server exposes sensitive information about team URLs via an API in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v2.0.1-0.20160310160916-26ad6d2c7696.

Mattermost Server: initial_load API exposes unnecessary information in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.1.1.

Guest user can discover active public channels in github.com/mattermost/mattermost-server

Mattermost Playbooks fails to validate the uniqueness and quantity of task actions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Playbooks fails to properly validate permissions in github.com/mattermost/mattermost-plugin-playbooks.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: .

Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v9.11.16.

Mattermost server allows authenticated user to delete arbitrary post in github.com/mattermost/mattermost-server

Mattermost Server vulnerable to application crash from attacker-generated large response in github.com/mattermost/mattermost-server

Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgery in github.com/mattermost/mattermost-server

Mattermost Server allows user to get private channel names in github.com/mattermost/mattermost-server

Mattermost incorrectly issues two sessions when using desktop SSO in github.com/mattermost/mattermost-server

Mattermost fails to strip embeds from metadata when broadcasting posted events in github.com/mattermost/mattermost-server

Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server

Resource exhaustion in Mattermost in github.com/mattermost/mattermost-server

Insecure plugin handling in Mattermost in github.com/mattermost/mattermost-server

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Improper Control of a Resource Through its Lifetime in Mattermost in github.com/mattermost/mattermost-server

Mattermost users could access some sensitive information via API call in github.com/mattermost/mattermost-server