CVE-2025-55035CWE-754

CVE-2025-55035

Medium · published October 16, 2025

CVSS v3.1
6.1
EPSS
0%
Percentile
23.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00315 · 23.2th percentile
Weakness
CWE-754 · Improper Check for Unusual or Exceptional Conditions
Published
2025-10-16T20:15Z
Affected products (1)
ProductVersionsFixed in
mattermost/mattermost_desktop< 5.13.1.05.13.1.0
References (1)
https://mattermost.com/security-updates · [email protected]
EPSS history
Timeline
  • 16 OCT 15:18Z
    Mattermost Desktop DoS when user has basic authentication server configured
    cvelistv5