VULNERABILITY INTELLIGENCE

CVE-2025-55070

CVSS score6.5 MEDIUM
EPSS probability0.32%
CISA KEVNot currently listed
Published2025-11-14
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-306

Primary references