A vulnerability classified as problematic has been found in croixhaug Appointment Booking Calendar Plugin up to 1.6.11.5 on WordPress. The affected element is the function
sleep of the file /wp-json/ssa/v1/async of the component REST API Endpoint. This manipulation causes resource consumption.
This vulnerability appears as CVE-2026-7493. The attack may be initiated remotely. There is no available exploit.
It is recommended to upgrade the affected component.