CVE-2026-18391

The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain...

EUVD-2026-57100

The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain...

CVE-2026-18391 WooCommerce Subscriptions < 9.1.0 - Unauthenticated RCE via PHP Object Injection

The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain...

CVE-2026-18391

The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain...

CVE-2026-18391

CVE-2026-18391 affects the WooCommerce Subscriptions WordPress plugin (pre-9.1.0). The issue: unauthenticated users can trigger a PHP Object Injection by not validating input before unserialization on stores that use High-Performance Order Storage, enabling Remote Code Execution via a gadget chai...

PT-2026-71025

The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain...