Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate user permissions when deleting comments in Boards, which allows an authenticated user with the editor role to delete comments created by other users.
| Software | From | Fixed in |
|---|---|---|
| mattermost / mattermost_server | 10.5.0 | 10.5.13 |
| mattermost / mattermost_server | 10.11.0 | 10.11.5 |
| mattermost / mattermost_server | 10.12.0 | 10.12.2 |
| mattermost / mattermost_server | 11.0.0 | 11.0.3 |