Live Composer < 2.1.24 - Admin+ Stored XSS via Icon

Description

The plugin does not sanitise and escape some of its page-builder module settings before outputting them, allowing users with access to the builder (Administrator by default) to inject arbitrary JavaScript that executes when the affected page is viewed by any visitor; this has impact even on administrators where the unfiltered_html capability is disallowed, e.g. in multisite setups.