The Abandoned Cart Lite for WooCommerce plugin for WordPress has a security vulnerability in versions up to and including 5.14.2. This vulnerability allows someone to bypass the authentication process, which is a security measure that requires a user to be identified before they can access the website. The vulnerability is due to insufficient encryption for the user data that is supplied during the abandoned cart link decode. This means that unauthenticated attackers can gain access to the accounts of customers who have abandoned the cart.