CVE-2025-13352

Description

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.

How to fix CVE-2025-13352

To remediate CVE-2025-13352, upgrade the affected package to a fixed version below.

• —upgrade to 10.11.7-0.20251106103514-3b05384dd014 or later
• —upgrade to 11.1.0+incompatible or later
• —upgrade to 1.0.1-0.20250829075715-0deffcfc6bee or later
• —upgrade to 1.0.1-0.20250829075715-0deffcfc6bee or later
• —no fix listed
• —no fix listed
• —no fix listed
• —no fix listed
• —upgrade to 10.11.7-0.20251106103514-3b05384dd014 or later

Is CVE-2025-13352 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (9)

• from 0, < 10.11.7-0.20251106103514-3b05384dd014
• >= 11.0.0-alpha.1+incompatible, < 11.1.0+incompatible
• from 0, < 1.0.1-0.20250829075715-0deffcfc6bee
• from 0, < 1.0.1-0.20250829075715-0deffcfc6bee
• >= 10.11.0-rc1+incompatible
• from 0
• from 0
• from 0
• >= 10.11.0-rc1, < 10.11.7-0.20251106103514-3b05384dd014

CVSS scores

References (6)

• ADVISORYgithub.com/advisories/GHSA-jf5h-xfw4-p8gp
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-13352
• PATCHgithub.com/mattermost/mattermost
• WEBgithub.com/mattermost/mattermost/commit/3b05384dd0146c1be3caa620a42e00e46027055d