CVE-2025-44004: Mattermost Confluence Plugin is Missing Authentication for Critical Function

August 11, 2025

Mattermost Confluence Plugin version <1.5.0 fails to check the authorization of the user to the Mattermost instance which allows attackers to create a channel subscription without proper authorization via API call to the create channel subscription endpoint.

References

github.com/advisories/GHSA-6ff3-jgxh-vffj
github.com/mattermost/mattermost-plugin-confluence
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2025-44004

Code Behaviors & Features

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