Printcart Web to Print Product Designer for WooCommerce < 2.5.3 - Unauthenticated Arbitrary File Read and Server-Side Request Forgery

The Printcart Web to Print Product Designer for WooCommerce WordPress plugin before 2.5.3 does not restrict a user-supplied URL before fetching it server-side and does not enforce a valid authorization check, allowing unauthenticated attackers to read arbitrary local files (including configuration files containing database credentials and secret keys) and to make server-side requests to internal resources.