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, allowing 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.
https://wpscan.com/vulnerability/c50e6d2c-fe67-44d4-af10-a261d0afc6d7/