CVE-2023-5201: Rickbeckman Openhook

High severity, CVSS 8.8. EPSS: 1.7% chance of exploitation in the next 30 days.

The OpenHook plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 4.3.0 via the 'php' shortcode. This allows authenticated attackers with subscriber-level permissions or above, to execute code on the server. This requires the [php] shortcode setting to be enabled on the vulnerable site.

Affected products

• Rickbeckman Openhook: up to and including 4.3.0

Published 2023-09-30. Last modified 2026-06-17.