CVE-2025-27933 MEDIUM

CVE-2025-27933: Unauthorized Private-to-Public Channel Conversion

Vendor Mattermost
Product Mattermost
Weakness CWE-863 · Incorrect authorization
Published March 21, 2025
Last update March 21, 2025
View on NVD All CVEs

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to fail to enforce channel conversion restrictions, which allows members with permission to convert public channels to private ones to also convert private ones to public

Key dates

02Disclosure timeline

March 21, 2025 CVE published
March 21, 2025 Record updated