Medium severity · published May 30, 2025
CVE-2025-3230
Bypass of System Admin User Deactivation Controls for Personal Access Tokens in Mattermost Server
5.4
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 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
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 14% 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-2025-3230
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-3230
Vendor Advisory
https://mattermost.com/security-updates
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