Vulnerability in Mattermost
CVE-2025-2571
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 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAuth signup flow.
EPSS: 0.002 (7.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Mattermost — versions 10.7.0, 10.6.0, 10.5.0
- Mattermost Mattermost_server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- responsibledisclosure@mattermost.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-2571?
- CVE-2025-2571 is a medium-severity vulnerability in Mattermost, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 4.2/10. Published 2025-05-30.
- How severe is CVE-2025-2571?
- Medium severity. CVSS v3 base score is 4.2 out of 10.
- Is CVE-2025-2571 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.