Cross-site scripting (XSS) vulnerability in whizzywig/wb.php in CMSimple Classic 3.54 and earlier, possibly as downloaded before February 26, 2014, allows remote attackers to inject arbitrary web script or HTML via the d parameter.
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.