VULNERABILITY INTELLIGENCE

CVE-2025-55035

CVSS score6.1 MEDIUM
EPSS probability0.32%
CISA KEVNot currently listed
Published2025-10-16
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H

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.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-754

Primary references