CVE-2025-13321 LOW

CVE-2025-13321: Mattermost Desktop App logging sensitive information and fails to clear data on server deletion

Vendor Mattermost
Product Mattermost
Weakness CWE-532 · Sensitive info in logs
Published December 17, 2025
Last update December 17, 2025

CVSS base score

3.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

Mattermost Desktop App versions <6.0.0 fail to sanitize sensitive information from Mattermost logs and clear data on server deletion which allows an attacker with access to the users system to gain access to potentially sensitive information via reading the application logs.

Key dates

02Disclosure timeline

December 17, 2025 CVE published
December 17, 2025 Record updated