Missing Authorization vulnerability in Karolína Vyskočilová Pay for Payment for WooCommerce woocommerce-pay-for-payment allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Pay for Payment for WooCommerce: from n/a through 3.0.1.
Update the WordPress Pay for Payment for WooCommerce plugin to the latest available version (at least 3.0.2).