CVE-2026-16540 Simply Schedule Appointments < 1.6.12.6 - Unauthenticated Appointment Data Disclosure and Mass Deletion via purge Endpoint

The Simply Schedule Appointments WordPress plugin before 1.6.12.6 does not correctly restrict a bulk appointment operation to the requester's own records, allowing unauthenticated users to retrieve the personal data of all appointments across the site and, on premium editions, to permanently dele...