CVE-2025-3611

Improper Access Control in Mattermost allows System Managers to view team details despite role restrictions

Description

Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly enforce access control restrictions for System Manager roles, allowing authenticated users with System Manager privileges to view team details they should not have access to via direct API requests to team endpoints, even when explicitly configured with 'No access' to Teams in the System Console.

Remediation

Solution:

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

Category

3.1
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory mattermost.com
Affected: Mattermost Mattermost
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-3611?
CVE-2025-3611 has been scored as a low severity vulnerability.
How to fix CVE-2025-3611?
To fix CVE-2025-3611: Update Mattermost to versions 10.8.0, 10.7.1, 10.5.4, 9.11.13 or higher.
Is CVE-2025-3611 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-3611 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-2025-3611?
CVE-2025-3611 affects Mattermost Mattermost.
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