Input validation vulnerability in LA-Studio Element Kit for Elementor 1.4.9

The LA-Studio Element Kit for Elementor is a plugin used for WordPress websites. It has a feature called Table of Contents widget that allows users to organize their content. However, this feature has a security issue where it does not properly clean up user input, making it vulnerable to attacks. This means that someone with contributor-level access or higher can insert harmful code into a page, which will then be executed whenever a user visits that page.