Improper Access Control in Mattermost Server versions 9.5.x before 9.5.2, 9.4.x before 9.4.4, 9.3.x before 9.3.3, 8.1.x before 8.1.11 lacked proper access control in the `/api/v4/users/me/teams` endpoint allowing a team admin to get the invite ID of their team, thus allowing them to invite users, even if the "Add Members" permission was explicitly removed from team admins.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/mattermost/mattermost/server/v8(Go) | 8.1.0 | 8.1.11 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 9.5.0 | 9.5.2 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 9.4.0 | 9.4.4 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 9.3.0 | 9.3.3 | N/A |
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