CVE-2026-7521
MEDIUM
5.5
CVSS Severity Score
Vulnerability Description
Mattermost versions 11.8.x <= 11.8.0, 11.7.x <= 11.7.3, 11.6.x <= 11.6.5, 10.11.x <= 10.11.20 fail to verify file deletion path which allows an admin with SAML system-console write permissions to delete arbitrary files outside the config directory from the server via the remove file endpoint.. Mattermost Advisory ID: MMSA-2026-00666
Affected Platforms (CPE)
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Mattermost
Mattermost Server
>= 10.11.0 and < 10.11.21>= 11.6.0 and < 11.6.6>= 11.7.0 and < 11.7.4>= 11.8.0 and < 11.8.1