The Master Addons – Elementor with White Label, Free Widgets, Hover Effects, Conditions, & Animations plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom JS extension in all versions up to, and including, 2.0.8.2 due insufficient capability restriction, input sanitization output escaping. This makes it possible authenticated attackers, Contributor-level access above, inject arbitrary web scripts pages that will execute whenever a user accesses an injected page.