CVE-2023-5340: Fivestarplugins Five Star Restaurant Menu

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

The Five Star Restaurant Menu and Food Ordering WordPress plugin before 2.4.11 unserializes user input via an AJAX action available to unauthenticated users, allowing them to perform PHP Object Injection when a suitable gadget is present on the blog.

Affected products

• Fivestarplugins Five Star Restaurant Menu: before 2.4.11 (fixed in 2.4.11)

Published 2023-11-20. Last modified 2026-06-17.