CVE-2025-3913

Team Privacy Settings Authorization Bypass in Mattermost Server

Published May 29, 2025 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Remediation

Vendor Solution

Update Mattermost to versions 10.8.0, 10.7.1, 10.6.3, 10.5.4, 9.11.13 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-16395 Mattermost improperly allows team administrators to modify team invites
Github GHSA Github GHSA GHSA-4mmr-2w8p-whcr Mattermost improperly allows team administrators to modify team invites
References
History
Type Values Removed Values Added
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.
Title Team Privacy Settings Authorization Bypass in Mattermost Server
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
May 29, 2025, 3:43 PM
Reserved
Apr 23, 2025, 11:15 PM
Status
Analyzed
Published
May 29, 2025, 4:15 PM
Modified
Jun 17, 2026, 9:20 AM