HUSKY <= 1.4.4 - Unauthenticated Local File Inclusion via 'custom_tpl' Shortcode Attribute via 'woof_draw_products' AJAX

The HUSKY – Products Filter for WooCommerce Professional plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 1.4.4 via the 'shortcode' parameter parameter. This makes it possible for unauthenticated attackers to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included. This vulnerability is exploitable by unauthenticated users because the only access control is a nonce check against woof_front_nonce, which is publicly emitted into inline JavaScript on every front-end page and is therefore obtainable by any site visitor without authentication.