WordPress Online Booking and Scheduling Plugin – Bookly, CVE-2026-2519
- CVE, Research URL
- Published on
- Apr 09, 2026
- Research Description
- The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to price manipulation via the 'tips' parameter in all versions up to, and including, 27.0. This is due to the plugin trusting a user-supplied input without server-side validation against the configured price. This makes it possible for unauthenticated attackers to submit a negative number to the 'tips' parameter, causing the total price to be reduced to zero.
- Affected versions
-
max 27.1.
- Status
-
vulnerable