Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.

Project Subscriptions

Vendors Products
Mattermost Subscribe
Mattermost Server Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2025-7203 Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.
Github GHSA Github GHSA GHSA-cw7q-5cgc-h3h9 Mattermost fail to prompt for explicit approval before adding a team admin to a private channel
Fixes

Solution

Update Mattermost to versions 10.5.0, 9.11.9 or higher.


Workaround

No workaround given by the vendor.

References
History

Thu, 27 Mar 2025 15:30:00 +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 08:30:00 +0000

Type Values Removed Values Added
Description Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.
Title Auto-Enrollment of Team Admins into Private Channels without explicit consent
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2025-03-21T13:35:01.832Z

Reserved: 2025-03-20T08:20:28.097Z

Link: CVE-2025-27715

cve-icon Vulnrichment

Updated: 2025-03-21T13:34:12.429Z

cve-icon NVD

Status : Analyzed

Published: 2025-03-21T09:15:13.100

Modified: 2025-03-27T15:01:03.360

Link: CVE-2025-27715

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses