CVE-2025-22449

Access control flaw for team admins allows unauthorized team additions

Description

Mattermost versions 9.11.x <= 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users to their team, to invite users by updating the "allow_open_invite" field via making their team public.

Remediation

Solution:

  • Update Mattermost to versions 10.3.0, 9.11.6 or higher.

Category

3.8
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.04%
Affected: Mattermost Mattermost
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-22449?
CVE-2025-22449 has been scored as a low severity vulnerability.
How to fix CVE-2025-22449?
To fix CVE-2025-22449: Update Mattermost to versions 10.3.0, 9.11.6 or higher.
Is CVE-2025-22449 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-22449 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-2025-22449?
CVE-2025-22449 affects Mattermost Mattermost.
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