Incorrect Authorization Affecting github.com/mattermost/mattermost/server/channels/api4 package, versions >=9.11.0 <9.11.18>=10.5.0 <10.5.9
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERCHANNELSAPI4-12148281
- published22 Aug 2025
- disclosed21 Aug 2025
- credithackit_bharat
Introduced: 21 Aug 2025
NewCVE-2025-53971 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/channels/api4 to version 9.11.18, 10.5.9 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization via the PUT /api/v4/teams/team-id/members/user-id/schemeRoles endpoint. An attacker can modify team member roles without proper authorization by sending crafted API requests.