What the vulnerability does
01Description
Missing Authorization vulnerability in wpdevart Booking calendar, Appointment Booking System booking-calendar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Booking calendar, Appointment Booking System: from n/a through <= 3.2.36.
Explanation of Vulnerability in Simple Terms
02Summary
The Booking Calendar plugin for WordPress contains an authorization bypass that allows unauthenticated attackers to modify booking data. The vulnerability stems from missing permission checks on certain API endpoints. An attacker can alter appointment records without authentication, potentially disrupting bookings or manipulating scheduling information.
What an attacker can do
03Attacker Capabilities
Modify or tamper with booking and appointment records without logging in.
Potential impact on your site
04Site Impact
Attackers can alter or corrupt appointment data, disrupting your booking system and customer trust.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
July 13, 2026
CVE published