Description
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1, 9.6.x <= 9.6.1, 8.1.x <= 8.1.12 fail to enforce proper access control which allows a user to run a slash command in a channel they are not a member of via linking a playbook run to that channel and running a slash command as a playbook task command.
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
9.5.0 to ≤ 9.5.3affected9.7.0 to ≤ 9.7.1affected9.6.0 to ≤ 9.6.1affected8.1.0 to ≤ 8.1.12affected9.8.0unaffected9.5.4unaffected9.7.2unaffected9.6.2unaffected8.1.13unaffected