What the vulnerability does
01Description
The Booking Calendar Contact Form plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.2.60. This is due to missing authorization checks and payment verification in the `dex_bccf_check_IPN_verification` function. This makes it possible for unauthenticated attackers to arbitrarily confirm bookings and bypass payment requirements via the 'dex_bccf_ipn' parameter.
Explanation of Vulnerability in Simple Terms
02Summary
Booking Calendar Contact Form versions 1.2.60 and earlier lack proper authorization checks, allowing unauthenticated attackers to modify data on the site. The vulnerability requires no user interaction and can be exploited over the network. Site administrators should update to a version newer than 1.2.60 immediately.
What an attacker can do
03Attacker Capabilities
Modify booking or form data without authentication.
Potential impact on your site
04Site Impact
Attackers can alter bookings, form submissions, or other plugin data without logging in.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
November 22, 2025
CVE published
April 8, 2026
Record updated