CVE-2026-59558: Wpdevelop Booking Calendar

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Unauthenticated Cross Site Scripting (XSS) in Booking Calendar <= 11.4.2 versions.

Affected products

• Wpdevelop Booking Calendar: up to and including 11.4.2

Published 2026-07-27. Last modified 2026-07-27.