CVE-2026-54050: Sakai Profile Image Deletion has an IDOR

The Sakai REST API endpoint DELETE /api/users/{userId}/profile/image does not verify that the requesting user is authorized to modify the target user’s profile. Any authenticated user can delete the profile image of any other user, including administrators, by supplying a different userId in the path. The service layer has no authorization check, and the delete cascades through Content Hosting Service (CHS) with a security advisor that bypasses all CHS permission checks.