A vulnerability was found in Mattermost up to 9.11.5/10.0.3/10.1.3. It has been classified as problematic. Affected is an unknown function. The manipulation leads to improper validation of specified type of input.
This vulnerability is traded as CVE-2025-20086. It is possible to launch the attack remotely. There is no exploit available.
It is recommended to upgrade the affected component.