Responsive Tabs For WPBakery Page Builder <= 1.1 - Contributor+ Stored XSS

The Responsive Tabs For WPBakery Page Builder (formerly Visual Composer) WordPress plugin through 1.1 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks