A vulnerability classified as problematic has been found in Mattermost up to 9.11.17/10.5.8/10.8.3/10.9.3/10.10.0. This affects an unknown part. Performing manipulation results in improper validation of specified type of input.
This vulnerability is cataloged as CVE-2025-8402. It is possible to initiate the attack remotely. There is no exploit available.
It is recommended to upgrade the affected component.