Cross-site scripting (XSS) vulnerability in xml/media-rss.php in the NextGEN Gallery plugin before 1.5.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the mode parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/57562
http://www.vupen.com/english/advisories/2010/0821
http://www.exploit-db.com/exploits/12098
http://wordpress.org/extend/plugins/nextgen-gallery/changelog/