A vulnerability has been found in Mattermost up to 9.11.5/10.0.3/10.1.3 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation leads to improper validation of specified type of input.
This vulnerability is known as CVE-2025-20088. The attack can be launched remotely. There is no exploit available.
It is recommended to upgrade the affected component.