CVE-2026-15289: medium-severity vulnerability in wpdevart Booking calendar, Appointment Booking…
Booking calendar, Appointment Booking System <= 3.2.17 - Unauthenticated Time-Based SQL Injection via 'wpdevart_id'
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.4%
The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to time-based SQL Injection via the ‘wpdevart_id’ 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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
wpdevart · Booking calendar, Appointment Booking SystemRelated CVEs — wpdevart Booking calendar, Appointment Booking…
In the same product, most dangerous first.
CVE-2026-8840MEDIUMBooking calendar, Appointment Booking System <= 3.2.36 - Missing Authorization to Unauthenticated Arbitrary Modification via wpdevart_payment AJAX ActionEPSS 0.5%CVE-2024-10856MEDIUMBooking Calendar WpDevArt <= 3.2.19 - Authenticated (Contributor+) SQL InjectionEPSS 0.5%CVE-2024-9504HIGHBooking calendar, Appointment Booking System <= 3.2.15 - Unauthenticated Stored Cross-Site Scripting via SVG File UploadEPSS 0.5%CVE-2024-12077MEDIUMBooking Calendar and Booking Calendar Pro <= Multiple Versions - Reflected Cross-Site Scripting via 'calendar_id'EPSS 0.4%CVE-2026-73395MEDIUMWordPress Booking calendar, Appointment Booking System plugin <= 3.2.36 - Insecure Direct Object References (IDOR) vulnerabilityEPSS 0.3%CVE-2026-57778MEDIUMWordPress Booking calendar, Appointment Booking System plugin <= 3.2.36 - Broken Access Control vulnerabilityEPSS 0.3%
References
https://plugins.trac.wordpress.org/browser/booking-calendar/trunk/includes/main_class.php#L64https://plugins.trac.wordpress.org/browser/booking-calendar/trunk/includes/main_class.php#L90https://plugins.trac.wordpress.org/browser/booking-calendar/trunk/includes/main_class.php#L91https://www.wordfence.com/threat-intel/vulnerabilities/id/8c052622-ac99-4069-b7df-41aea303ed9d?source=cve