CVE-2025-55035

MediumCVSS 6.1/10Last modified Oct 19, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H

Weakness enumeration

CWE-754

Affected software

No affected versions have been published.

Timeline

Published: Oct 16, 2025
Last modified: Oct 19, 2026
NVD status: Analyzed

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