VULNERABILITY INTELLIGENCE

CVE-2026-7521

CVSS score5.5 MEDIUM
EPSS probability0.44%
CISA KEVNot currently listed
Published2026-07-28
Last modified2026-07-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

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

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-22

Primary references