Description
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 in playbook runs, allowing authenticated users without the 'Manage Channel Members' permission to add or remove users from public and private channels by manipulating playbook run participants when the run is linked to a channel.
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
10.5.0 to ≤ 10.5.5affected9.11.0 to ≤ 9.11.15affected10.8.0affected10.7.0 to ≤ 10.7.2affected10.6.0 to ≤ 10.6.5affected10.9.0unaffected10.5.6unaffected9.11.16unaffected10.8.1unaffected10.7.3unaffected10.6.6unaffected