All intelligence
// vulnerability record
cached · NVD via COSMOS syncCVE-2026-7387
HIGHpublished 2026-06-12 17:16 UTC · 13 days ago · modified 2026-06-15 20:56 UTC
8.8
CVSS / 10
// description
Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15, 10.11.x <= 10.11.16 Mattermost fails to require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints, which allows a user with group-link permissions to escalate themselves and group members to team or channel admin via crafted API requests.. Mattermost Advisory ID: MMSA-2026-00665
// cvss 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
// weaknesses (CWE)
- CWE-863