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The Timetable and Event Schedule WordPress plugin before 2.4.2 does not have suitable access control when deleting a timeslot, allowing any user with the edit_posts capability (contributor+) to delete arbitrary timeslot from any events. Furthermore, no CSRF cheque is in place as well, allowing such attack to be performed via CSRF against a logged in with such capability (CVSS:0.0) (Closing Update:2021-09-20)

13 Layers Managed Security Services