CVE-2026-18391

None

Open

TLP:CLEAR

WooCommerce Subscriptions < 9.1.0 - Unauthenticated RCE via PHP Object Injection

NVD CVE.org

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Description

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 present in the bundled dependencies.

Details

EPSS Score ⓘ: 0.28%

20.1th percentile
Confidence: 90%
Published: Aug 12, 2026
Last Modified: Aug 12, 2026

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