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
Advisories
Source ID Title
EUVD EUVD EUVD-2025-7204 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
Github GHSA Github GHSA GHSA-h5v9-xw2g-7hrq Mattermost allows members with permission to convert public channels to private and convert private to public
Fixes

Solution

Update Mattermost to versions 10.5.0, 10.4.3, 10.3.4, 9.11.9 or higher.


Workaround

No workaround given by the vendor.

References
History

Thu, 27 Mar 2025 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Mattermost
Mattermost mattermost Server
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost
Mattermost mattermost Server

Fri, 21 Mar 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 21 Mar 2025 08:45:00 +0000

Type Values Removed Values Added
Description 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
Title Unauthorized Private-to-Public Channel Conversion
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2025-03-21T13:32:57.219Z

Reserved: 2025-03-20T08:20:28.128Z

Link: CVE-2025-27933

cve-icon Vulnrichment

Updated: 2025-03-21T13:32:41.162Z

cve-icon NVD

Status : Analyzed

Published: 2025-03-21T09:15:13.260

Modified: 2025-03-27T14:55:25.660

Link: CVE-2025-27933

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.