Cross-site scripting (XSS) vulnerability in the Blubrry PowerPress Podcasting plugin before 6.0.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the cat parameter in a powerpress-editcategoryfeed action in the powerpressadmin_categoryfeeds.php page to wp-admin/admin.php.
https://wordpress.org/plugins/powerpress/changelog/
http://www.securityfocus.com/bid/72362
http://www.securityfocus.com/archive/1/534577/100/0/threaded