CVE-2022-4035 - CVE House
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Status published High CVE-2022-4035

Appointment Hour Booking <= 1.3.72 - Unauthenticated iFrame Injection via Appointment Form

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Luca Greeb
  • Andreas Krüger

Affected Vendor

Affected Software

Appointment Hour Booking – Booking Calendar
Vulnerable Versions:
0

Timeline

Official Publish: November 29th, 2022
Last Modified: April 8th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Weaknesses (CWE)