CVE-2025-6227 – github.com/mattermost/mattermost-server

Package

Manager: go
Name: github.com/mattermost/mattermost-server
Vulnerable Version: >=10.5.0 <10.5.8 || >=9.11.0 <9.11.17

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N

EPSS: 0.00035 pctl0.08558

Details

Mattermost has Insufficiently Protected Credentials 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.

Metadata

Created: 2025-07-18T12:30:36Z
Modified: 2025-07-21T18:50:07Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-4fwj-8595-wp25/GHSA-4fwj-8595-wp25.json
CWE IDs: ["CWE-522"]
Alternative ID: GHSA-4fwj-8595-wp25
Finding: F035
Auto approve: 1