CVE-2025-1472: Mattermost Server

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Mattermost Mattermost Server: from 9.11.0, before 9.11.9 (fixed in 9.11.9)

Published 2025-03-19. Last modified 2026-06-17.