Security Advisory

CVE-2025-55035

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-10-16 15:18:25
Last updated 2025-10-16 16:28:05
Assigner Mattermost
State PUBLISHED

Description

Mattermost Desktop App versions <=5.13.0 fail to manage modals in the Mattermost Desktop App that stops a user with a server that uses basic authentication from accessing their server which allows an attacker that provides a malicious server to the user to deny use of the Desktop App via having the user configure the malicious server and forcing a modal popup that cannot be closed.