Craft CMS has a Missing Authorization Check on User Group Removal via save-permissions Action
Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the `actionSavePermissions()` endpoint allows a user with only `viewUsers` permission to remove arbitrary users from all user groups. While `_saveUserGroups()` enforces per-group authorization for additions, it performs no equivalent auth…
Severity medium: primary CNA CVSS 5.3 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-04-21T23:32:37.911Z. Updated 2026-04-22T18:13:34.270Z.