The ECPay Ecommerce for WooCommerce plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the 'clear_ecpay_debug_log' AJAX action in all versions up to, and including, 1.1.2411060. This makes it possible for authenticated attackers, with Subscriber-level access and above, to clear the plugin's log files.
https://wordpress.org/plugins/ecpay-ecommerce-for-woocommerce/