PT-2026-57066 · Wpdevart · Booking Calendar

Shaman0X01 · Published 2026-07-10 · Updated 2026-07-10 · CVE-2026-15289

Mitre

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-15289

Affected Products

Booking Calendar

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-15289 · Security Note
• https://plugins.trac.wordpress.org/browser/booking-calendar/trunk/includes/main_class.php#L90 · Note
• https://plugins.trac.wordpress.org/browser/booking-calendar/trunk/includes/main_class.php#L91 · Note
• https://plugins.trac.wordpress.org/browser/booking-calendar/trunk/includes/main_class.php#L64 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/8c052622-ac99-4069-b7df-41aea303ed9d?source=cve · Note