WP Video Lightbox < 1.9.7 - Contributor+ Stored XSS

The plugin does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admin.

Exploit shortcode: 

[video_lightbox_youtube video_id='1' auto_thumb='1' height='100' width='100;alert(1)']