Return Refund and Exchange For WooCommerce <= 4.5.5 - Insecure Direct Object Reference to Authenticated (Subscriber+) Refund Request Cancellation

The Return Refund and Exchange For WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.5.5 via the 'wps_rma_cancel_return_request' AJAX endpoint due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete other users refund requests.