CVE-2025-1472: Mattermost Fails to Properly Perform Viewer Role Authorization

March 19, 2025

Mattermost versions 9.11.x <= 9.11.8 fail to properly perform authorization of the Viewer role which allows an attacker with the Viewer role configured with No Access to Reporting to still view team and site statistics.

References

github.com/advisories/GHSA-fqrq-xmxj-v47x
github.com/mattermost/mattermost
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2025-1472

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