CVE-2022-4036
Appointment Hour Booking <= 1.3.72 - CAPTCHA Bypass
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-804 |
| Vendor | codepeople |
| Product | appointment hour booking – booking calendar |
| Published | Nov 29, 2022 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
codepeople / Appointment Hour Booking – Booking Calendar
0 ≤ 1.3.72
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/f62d28bd-fa33-4f0b-a116-5aacc05bfa3a?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2803896%40appointment-hour-booking&new=2803896%40appointment-hour-booking&sfp_email=&sfph_mail= wordfence.com: https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-4036
Credits
Luca Greeb Andreas Krüger