CVE-2022-4036: Dwbooster Appointment Hour Booking

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

The Appointment Hour Booking plugin for WordPress is vulnerable to CAPTCHA bypass in versions up to, and including, 1.3.72. This is due to the use of insufficiently strong hashing algorithm on the CAPTCHA secret that is also displayed to the user via a cookie.

Affected products

• Dwbooster Appointment Hour Booking: up to and including 1.3.72

Published 2022-11-29. Last modified 2026-06-17.