Permission Validation Flaw in Mattermost API

CVE-2025-2527

What is CVE-2025-2527?

A significant access control vulnerability exists in Mattermost versions 10.5.x (up to and including 10.5.2) and 9.11.x (up to and including 9.11.11). This issue arises from the application's failure to adequately verify user permissions when attempting to access group information via the API. As a result, attackers can exploit this flaw to retrieve sensitive group details without the necessary permissions, potentially leading to unauthorized information exposure and privacy violations.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch →

References