An Access Control vulnerability exists in Desire2Learn/D2L Learning Management System (LMS) 20.21.7 via the quizzing feature, which allows a remote malicious user to disable the Disable right click control.

A bypass exists for Desire2Learn/D2L Brightspace’s “Disable Right Click” option in the quizzing feature, which allows a quiz-taker to access print and copy functionality via the browser’s right click menu even when “Disable Right Click” is enabled on the quiz.