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.
Improper Neutralization of Input During Web Page Generation The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.