Post Grid Elementor Addon < 2.0.17 - Authenticated (Contributor+) Stored Cross-Site Scripting via title_tag

Description

The Post Grid Elementor Addon plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the title_tag parameter in versions up to, and including, 2.0.16 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.