Funnelforms Free <= 3.8 - Authenticated (Contributor+) Stored Cross-Site Scripting

Reaching this weakness in Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor <= 3.8 takes an account at Contributor level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. No fixed build of this plugin is recorded for Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor yet, so installs running <= 3.8 stay exposed until the vendor ships one.