CVE-2026-15289: 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
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-15289
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-152890.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-15289 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Booking calendar
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-13039: The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for Wo…nvd · 2026-07-10
- mediumCVE-2026-12924: The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for Wo…nvd · 2026-07-10
- highCVE-2026-13441: The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to S…nvd · 2026-07-09
- mediumCVE-2026-12433: The Hydra Booking – Appointment Scheduling & Booking Calendar plugin for WordPress is vulnerab…nvd · 2026-07-09
- highCVE-2026-5356: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vul…nvd · 2026-07-08
- highCVE-2026-12378: The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin through 1.1.28 …nvd · 2026-07-08
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