Responsive Iframe WordPress Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Responsive Iframe WordPress plugin, affecting versions through 1.2.0. The issue arises because the plugin fails to properly validate and escape certain block options before rendering them on pages or posts. This flaw enables users with a contributor role or higher to inject malicious scripts that are stored and executed later.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page or post.