Appointment Hour Booking <= 1.3.72 - CAPTCHA Bypass

Guessable CAPTCHA
CVE CVE-2022-4036
CVSS Medium (5.3)
Publicly Published November 29, 2022
Last Updated January 22, 2024
Researcher Luca Greeb, Andreas Krüger
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.

References

1 affected software package

Software Type Plugin
Software Slug appointment-hour-booking (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.3.72
Patched Version
  • 1.3.73
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