CVE-2025-6227

Invite token is used as part of the secure communication

Published Jul 18, 2025 CVSS 3.1 · 2.2 Low EPSS < 1% KEV · Not listed
Description
Mattermost versions 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to negotiate a new token when accepting the invite which allows a user that intercepts both invite and password to send synchronization payloads to the server that originally created the invite via the REST API.

Remediation

Vendor Solution

Update Mattermost to versions 10.9.0, 10.5.8, 9.11.17 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-21876 Mattermost has Insufficiently Protected Credentials
Github GHSA Github GHSA GHSA-4fwj-8595-wp25 Mattermost has Insufficiently Protected Credentials
References
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 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to negotiate a new token when accepting the invite which allows a user that intercepts both invite and password to send synchronization payloads to the server that originally created the invite via the REST API.
Title Invite token is used as part of the secure communication
Weaknesses CWE-522
References
Metrics cvssV3_1

{'score': 2.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Jul 18, 2025, 1:44 PM
Reserved
Jun 18, 2025, 10:41 AM
Status
Analyzed
Published
Jul 18, 2025, 12:15 PM
Modified
Jun 17, 2026, 10:01 AM