CVE-2025-53910: Mattermost Confluence Plugin has Missing Authorization vulnerability

August 11, 2025

Mattermost Confluence Plugin versions < 1.5.0 fail to check user access to the channel, allowing attackers to create a channel subscription without proper access to the channel via an API call to the edit channel subscription endpoint.

References

github.com/advisories/GHSA-v6c8-g53h-mc2h
github.com/mattermost/mattermost-plugin-confluence
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2025-53910

Code Behaviors & Features

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