Multiple cross-site scripting (XSS) vulnerabilities in Easy Photo Gallery (aka Ezphotogallery) 2.1 allow remote attackers to inject arbitrary web script or HTML via the (1) galleryid parameter to gallery.php, and the (2) size or (3) imageid parameters to show.php.
https://www.exploit-db.com/exploits/6428
https://exchange.xforce.ibmcloud.com/vulnerabilities/45050
http://www.securityfocus.com/archive/1/496220/100/0/threaded