Medium severity · published May 30, 2025
CVE-2025-2571
Google OAuth Authentication Bypass for Converted Bot Accounts
4.2
CVSS
0.2%
EPSS
No
On KEV
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 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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
10.7.0; 10.6.0 through 10.6.2; 10.5.0 through 10.5.3; 9.11.0 through 9.11.12 · source: vendor
MS
Mattermost Server · Mattermost
9.11.0 before 9.11.13; 10.5.0 before 10.5.4; 10.6.0 before 10.6.3; 10.7.0 before 10.7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-2571
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-2571
Vendor Advisory
https://mattermost.com/security-updates
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