CVE-2026-7521

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CVSS 3.1

5.5 medium

EPSS

<1%p21

Published

Jul 28, 2026 (Jul 28, 2026)

Modified

Jul 29, 2026

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

Vendors: mattermost
Products: mattermost server
Weakness: CWE-22
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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