Multiple cross-site scripting (XSS) vulnerabilities in Frams' Fast File EXchange (F*EX, aka fex) before fex-20140530 allow remote attackers to inject arbitrary web script or HTML via the (1) akey parameter to rup or (2) disclaimer or (3) gm parameter to fuc.
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.