CVE-2025-13324 | Mattermost up to 10.11.5/10.12.2/11.0.4 Channel Membership authorization

A vulnerability was found in Mattermost up to 10.11.5/10.12.2/11.0.4. It has been declared as problematic. The impacted element is an unknown function of the component Channel Membership Handler. The manipulation results in incorrect authorization.

This vulnerability is cataloged as CVE-2025-13324. The attack may be launched remotely. There is no exploit available.

It is recommended to upgrade the affected component.

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