CVE-2022-4036 MEDIUM

CVE-2022-4036: Appointment Hour Booking <= 1.3.72 - CAPTCHA Bypass

Vendor Codepeople
Product Appointment Hour Booking – Booking Calendar
Weakness CWE-804
Published November 29, 2022
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 29, 2022 CVE published
April 8, 2026 Record updated