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.

INFO

Published Date :

2025-10-16T15:18:25.389Z

Last Modified :

2025-10-16T16:28:05.951Z

Source :

Mattermost
AFFECTED PRODUCTS

The following products are affected by CVE-2025-55035 vulnerability.

Vendors Products
Mattermost
  • Mattermost
  • Mattermost Desktop
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-55035.

URL Resource
https://mattermost.com/security-updates cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact