The Essential Addons for Elementor – Best Elementor Templates, Widgets, Kits & WooCommerce Builders plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'get_manual_calendar_events' function in all versions up to, and including, 5.9.22 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.