Cross-site scripting (XSS) vulnerability in NuSOAP 0.9.5, as used in MantisBT and other products, allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO to an arbitrary PHP script that uses NuSOAP classes.
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.