CVE-2026-81431: Unknown Registration Form For Woocommerce

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

The Registration Form for WooCommerce WordPress plugin before 1.1.3 does not validate that the form referenced during registration is a legitimate registration form, reading the permitted-role allow-list from an arbitrary attacker-controlled post instead. A user able to create a post (Contributor and above) can therefore register a new account with an arbitrary role, including Administrator, leading to full site takeover. This is an incomplete fix of CVE-2026-54807.

Affected products

• Unknown Registration Form For Woocommerce: from 1.1.0, before 1.1.3 (fixed in 1.1.3)

Published 2026-09-10. Last modified 2026-09-10.