VULNERABILITY INTELLIGENCE
CVE-2025-6227
CVSS score2.2 LOW
EPSS probability0.22%
CISA KEVNot currently listed
Published2025-07-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N
Description
Mattermost versions 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to negotiate a new token when accepting the invite which allows a user that intercepts both invite and password to send synchronization payloads to the server that originally created the invite via the REST API.
Weakness classification
- responsibledisclosure@mattermost.com: CWE-522
Primary references
- responsibledisclosure@mattermost.com — Vendor Advisory