CVE-2025-52931: Mattermost Confluence Plugin has Improper Check for Unusual or Exceptional Conditions

August 11, 2025

Mattermost Confluence Plugin versions < 1.5.0 fails to handle unexpected request bodies, allowing attackers to crash the plugin via constant hits to the update channel subscription endpoint with an invalid request body.

References

github.com/advisories/GHSA-vc77-c2hx-h5x2
github.com/mattermost/mattermost-plugin-confluence
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2025-52931

Code Behaviors & Features

Detect and mitigate CVE-2025-52931 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 →