Auth bypass in Mattermost
CVE-2025-25068
Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8, 10.5.x <= 10.5.0 fail to enforce MFA on plugin endpoints, which allows authenticated attackers to bypass MFA protections via API requests to plugin-specific routes.
Vulnerability class: Broken Authentication
EPSS: 0.003 (24.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mattermost — versions 10.4.0, 10.3.0, 9.11.0
- Mattermost Mattermost_server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- responsibledisclosure@mattermost.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-25068?
- CVE-2025-25068 is a high-severity vulnerability in Mattermost, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2025-03-21.
- How severe is CVE-2025-25068?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-25068 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.