CVE-2025-22449: Access control flaw for team admins allows unauthorized team additions

3.8 CVSS

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.

Classification

CVE ID: CVE-2025-22449

CVSS Base Severity: LOW

CVSS Base Score: 3.8

Affected Products

Vendor: Mattermost

Product: Mattermost

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.48% (scored less or equal to compared to others)

EPSS Date: 2025-02-07 (when was this score calculated)

References

https://mattermost.com/security-updates

Timeline