ElementsKit Elementor addons <= 3.4.7 - Authenticated (Contributor+) Stored Cross-Site Scripting

The ElementsKit Elementor addons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Countdown Timer Widget ekit_countdown_timer_title parameter in all versions up to, and including, 3.4.7 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.