A cross-site scripting (XSS) vulnerability in resource view in PayAction.class.php in D-Link Central WiFi Manager CWM(100) before v1.03R0100_BETA6 allows remote attackers to inject arbitrary web script or HTML via the index.php/Pay/passcodeAuth passcode parameter.
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.