Description
Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to restrict which roles can promote a user as system admin which allows a System Role with edit access to the permissions section of system console to update their role (e.g. member) to include the `manage_system` permission, effectively becoming a System Admin.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Mattermost Mattermost
Default version status: unaffected
9.9.0 to ≤ 9.9.1affected9.5.0 to ≤ 9.5.7affected9.10.0affected9.8.0 to ≤ 9.8.2affected9.11.0unaffected9.9.2unaffected9.5.8unaffected9.10.1unaffected9.8.3unaffected