HEL Online Classroom vulnerabilities

The HEL Online Classroom: AI-powered Online Classrooms WordPress plugin through 1.0.3 does not perform authorisation checks on its REST API routes and does not consistently enforce the per-class access code. This allows unauthenticated users to obtain a signed meeting join link for any classroom, including one protected by an access code, and to join it with moderator privileges.

The HEL Online Classroom: AI-powered Online Classrooms WordPress plugin through 1.0.3 does not have any authorisation or authentication check when saving its settings. This allows unauthenticated users to overwrite them and repoint every online classroom, along with the shared secret those sessions are signed with, at infrastructure of their choosing.

The HEL Online Classroom: AI-powered Online Classrooms WordPress plugin through 1.0.3 does not perform any authorisation check on one of its REST API routes. This allows unauthenticated users to retrieve its stored settings, including the shared secret used to sign API requests to the connected BigBlueButton server.