Video Widget <= 1.2.3 - Admin+ Stored XSS via Widget

Description The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

PoC

1. Add a “Video Widget” to a widget area 2. Add the payload "> for the “width” value 3. Save and see the XSS Note: other fields are likely vulnerable