CVE-2025-22449

Access control flaw for team admins allows unauthorized team additions

Published Jan 9, 2025 CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Description
Mattermost versions 9.11.x <= 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users to their team, to invite users by updating the "allow_open_invite" field via making their team public.

Remediation

Vendor Solution

Update Mattermost to versions 10.3.0, 9.11.6 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2025-0038 Mattermost versions 9.11.x <= 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users to their team, to invite users by updating the "allow_open_invite" field via making their team public.
Github GHSA Github GHSA GHSA-q8fg-cp3q-5jwm Mattermost Incorrect Authorization vulnerability
History
Type Values Removed Values Added
First Time appeared Mattermost mattermost Server
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost mattermost Server
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description Mattermost versions 9.11.x <= 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users to their team, to invite users by updating the "allow_open_invite" field via making their team public.
Title Access control flaw for team admins allows unauthorized team additions
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 3.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Jan 9, 2025, 3:29 PM
Reserved
Jan 8, 2025, 11:07 AM
Status
Analyzed
Published
Jan 9, 2025, 7:15 AM
Modified
Jun 17, 2026, 8:47 AM
Severity
Low
Public date
Jan 9, 2025, 6:54 AM