CVE-2026-15289: Booking calendar, Appointment Booking System <= 3.2.17 - Unauthenticated Time-Based SQL Injection via 'wpdevart_id'
The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to time-based SQL Injection via the ‘wpdevartid’ parameter in all versions up to, and including, 3.2.17 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. In order to exploit the vulnerability, the Pro version of the plugin must be installed and activated, with the 'Delete previous dates' option checked.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-15289?
CVE-2026-15289 has a medium severity score of 5.9.
How do I fix CVE-2026-15289?
To fix CVE-2026-15289, update the Booking calendar, Appointment Booking System plugin to version 3.2.18 or later.
What type of vulnerability is CVE-2026-15289?
CVE-2026-15289 is a time-based SQL injection vulnerability.
Which versions of the Booking calendar, Appointment Booking System are affected by CVE-2026-15289?
CVE-2026-15289 affects all versions up to and including 3.2.17.
What parameter is involved in the CVE-2026-15289 vulnerability?
The vulnerability in CVE-2026-15289 is associated with the 'wpdevart_id' parameter.