Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in MachoThemes CPO Companion allows Stored XSS.This issue affects CPO Companion: from n/a through 1.1.0.
The CPO Companion WordPress plugin before 1.1.0 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 admins.