CVE-2021-24555: Roosty Diary-Availability-Calendar

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

The daac_delete_booking_callback function, hooked to the daac_delete_booking AJAX action, takes the id POST parameter which is passed into the SQL statement without proper sanitisation, validation or escaping, leading to a SQL Injection issue. Furthermore, the ajax action is lacking any CSRF and capability check, making it available to any authenticated user.

Affected products

• Roosty Diary-Availability-Calendar: up to and including 1.0.3

Published 2021-08-23. Last modified 2026-06-17.