SoftCart 5.1.2.2 contains a flaw that allows a remote cross site scripting attack.  This flaw exists because the application does not validate multiple variables upon submission to the SoftCart.exe script.  This could allow a user to create a specially crafted URL that would execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.

References:

BID: 27524
CVE-2008-0523
OSVDB: 40775
SECUNIA: 28675
XF: 40061