The Element Pack Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-caption’ attribute in all versions up to, and including, 8.0.0 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.
https://wordpress.org/plugins/bdthemes-element-pack-lite/#developers
https://plugins.trac.wordpress.org/changeset/3319668/
https://plugins.trac.wordpress.org/browser/bdthemes-element-pack-lite/trunk/assets/js/bdt-uikit.js
https://github.com/uikit/uikit/issues/5162
https://feedback.bdthemes.com/announcements?category=category_6l495r8q