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OpenAdvisories
Medium · 5.3 CVE-2022-4036 EUVD-2022-51415GHSA-5cwm-9hm2-r3cf

Appointment Hour Booking <= 1.3.72 - CAPTCHA Bypass

Published Nov 29, 2022 · Updated Apr 8, 2026 · Assigned by Wordfence

Description

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

VendorProductAffectedFixed
codepeople Appointment Hour Booking – Booking Calendar ≤ 1.3.72 —

References