CVE-2022-4035: Dwbooster Appointment Hour Booking

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

The Appointment Hour Booking plugin for WordPress is vulnerable to iFrame Injection via the ‘email’ or general field parameters in versions up to, and including, 1.3.72 due to insufficient input sanitization and output escaping that makes injecting iFrame tags possible. This makes it possible for unauthenticated attackers to inject iFrames when submitting a booking that will execute whenever a user accesses the injected booking details page.

Affected products

• Dwbooster Appointment Hour Booking: up to and including 1.3.72

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