The Element Pack Addons for Elementor – Free Templates and Widgets for Your WordPress Websites plugin for WordPress is vulnerable to Stored Cross-Site Scripting via several widgets like Dual Button, Creative Button, Image Stack and more in all versions up to, and including, 5.10.29 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.