VULNERABILITY INTELLIGENCE

CVE-2025-3230

CVSS score5.4 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2025-05-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Description

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens.

Weakness classification

  • CWE-303: Incorrect Implementation of Authentication Algorithm

Primary references