CVE-2026-2520
The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'updateAddon' function in all versions up to, and including, 27.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update any plugin with a main file of 'main.php' to its latest version.
- Published Sep 8, 2026
- CVSS 5.4 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available