The Flexible Wishlist for WooCommerce – Ecommerce Wishlist & Save for later plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.2.26. This is due to missing or incorrect nonce validation on several functions. This makes it possible for unauthenticated attackers to modify/update/create other user's wishlists via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Flexible Wishlist for WooCommerce – Ecommerce Wishlist & Save for later plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘wishlist_name’ parameter in all versions up to, and including, 1.2.25 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.