Description
Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows restricted admin users to install unauthorized custom plugins via path traversal in the import functionality, bypassing plugin signature enforcement and marketplace restrictions.
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
10.9.0 to ≤ 10.9.1affected10.8.0 to ≤ 10.8.3affected10.5.0 to ≤ 10.5.8affected9.11.0 to ≤ 9.11.17affected10.10.0unaffected10.9.2unaffected10.8.4unaffected10.5.9unaffected9.11.18unaffected