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Description
A Broken Access Control vulnerability exists in ClassroomIO v0.1.13 where an authenticated low-privileged "student" user can access unauthorized course-level information by modifying intercepted API requests. Changing a captured POST request to a GET request against the /rest/v1/course PostgREST endpoint results in disclosure of sensitive information including other students details, tutor/admin profiles, and internal course metadata.
References
github.com/classroomio/classroomio/issues/642
drive.google.com/...mBo4FdOo_27q-4H9MV34/view?usp=drive_link
github.com/classroomio/classroomio/issues/642