CVE-2024-13821: Wpbookingcalendar Booking Calendar

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

The WP Booking Calendar plugin for WordPress is vulnerable to Unauthenticated Post-Confirmation Booking Manipulation in all versions up to, and including, 10.10. This is due to the plugin not properly requiring re-verification after a booking has been made and a change is being attempted. This makes it possible for unauthenticated attackers to manipulate their confirmed bookings, even after they have been approved.

Affected products

• Wpbookingcalendar Booking Calendar: before 10.10.1 (fixed in 10.10.1)

Published 2025-02-12. Last modified 2026-06-17.