CVE-2025-41423: Mattermost Playbooks fails to properly validate permissions
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate permissions for the API endpoint /plugins/playbooks/api/v0/signal/keywords/ignore-thread, allowing any user or attacker to delete posts containing actions created by the Playbooks bot, even without channel access or appropriate permissions.
References
- github.com/advisories/GHSA-fr22-5377-f3p7
- github.com/mattermost/mattermost-plugin-playbooks
- github.com/mattermost/mattermost-plugin-playbooks/commit/f9f7064e4d9f3918d66bac1f5f9eb28f0723464b
- github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8a
- mattermost.com/security-updates
- nvd.nist.gov/vuln/detail/CVE-2025-41423
Code Behaviors & Features
Detect and mitigate CVE-2025-41423 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →