The JetWidgets For Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 1.0.21. This is due to insufficient output escaping and missing server-side validation of the Animated Box widget's animation_effect setting before it is rendered inside an HTML class attribute. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.