A vulnerability classified as critical has been found in Moodle up to 4.1.15/4.3.9/4.4.5/4.5.1. This affects an unknown part of the component Separate Groups Mode. The manipulation leads to incorrect authorization.
This vulnerability is uniquely identified as CVE-2025-26526. It is possible to initiate the attack remotely. There is no exploit available.
It is recommended to upgrade the affected component.