The Quiz and Survey Master (QSM) WordPress plugin before 11.2.4 does not perform a per-object ownership check on the REST routes that return a quiz's email-notification and results-page configuratio…

Summary

The Quiz and Survey Master (QSM) WordPress plugin before 11.2.4 does not perform a per-object ownership check on the REST routes that return a quiz's email-notification and results-page configuration, allowing users with contributor-level access and above to read the configuration, including notification recipient addresses, of quizzes created by other users.