Improper Token Invalidation in Mattermost by Mattermost, Inc.
CVE-2025-3230

5.4MEDIUM

Key Information:

Vendor

Mattermost
Status
Mattermost
Vendor
CVE Published:
30 May 2025

What is CVE-2025-3230?

Mattermost suffers from a vulnerability where personal access tokens are not invalidated when a user is deactivated. This flaw allows users who have been deactivated to still access the system seamlessly by exploiting previously issued tokens. Attackers could potentially use this to retain unauthorized access, posing a serious risk to the integrity of system security. It is recommended that users and administrators ensure proper token management and updates to mitigate this issue.

Affected Version(s)

Mattermost 10.7.0

Mattermost 10.6.0 <= 10.6.2

Mattermost 10.5.0 <= 10.5.3

References

https://mattermost.com/security-updates

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

eAhmed
.
CVE-2025-3230 : Improper Token Invalidation in Mattermost by Mattermost, Inc.