CVE-2025-3230

Bypass of System Admin User Deactivation Controls for Personal Access Tokens in Mattermost Server

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.

Remediation

Solution:

  • Update Mattermost to versions 10.8.0, 10.7.1, 10.6.3, 10.5.4, 9.11.13 or higher.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: Mattermost Mattermost
Published at:
Updated at:

References

Link Tags
https://mattermost.com/security-updates

Frequently Asked Questions

What is the severity of CVE-2025-3230?
CVE-2025-3230 has been scored as a medium severity vulnerability.
How to fix CVE-2025-3230?
To fix CVE-2025-3230: Update Mattermost to versions 10.8.0, 10.7.1, 10.6.3, 10.5.4, 9.11.13 or higher.
Is CVE-2025-3230 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-3230 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3230?
CVE-2025-3230 affects Mattermost Mattermost.
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