The TI WooCommerce Wishlist plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wizard' function in all versions up to, and including, 2.9.1. This makes it possible for unauthenticated attackers to create new pages, modify plugin settings, and perform limited options updates.

The TI WooCommerce Wishlist WordPress plugin through 2.8.2 is vulnerable to SQL Injection due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The TI WooCommerce Wishlist WordPress plugin before 1.40.1, TI WooCommerce Wishlist Pro WordPress plugin before 1.40.1 do not sanitise and escape the itemid parameter before using it in a SQL statement via the wishlist/removeproduct REST endpoint, allowing unauthenticated attackers to perform SQL injection attacks