CVE-2025-46702 – github.com/mattermost/mattermost-server

Package

Manager: go
Name: github.com/mattermost/mattermost-server
Vulnerable Version: >=0 <0.0.0-20250513065225-4ae5d647fb88

Severity

Level: Medium

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

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

EPSS: 0.00039 pctl0.10462

Details

Mattermost Incorrect Authorization vulnerability Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly enforce channel member management permissions when adding participants to playbook runs. This allows authenticated users with member-level permissions to bypass system admin restrictions and add or remove users to/from private channels via the playbook run participants feature, even when the 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive channel content and allow guest users to gain channel management privileges.

Metadata

Created: 2025-06-30T18:31:50Z
Modified: 2025-06-30T20:40:33Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/06/GHSA-v8fr-vxmw-6mf6/GHSA-v8fr-vxmw-6mf6.json
CWE IDs: ["CWE-863"]
Alternative ID: GHSA-v8fr-vxmw-6mf6
Finding: F006
Auto approve: 1