PayProCart contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate the 'username', 'pageID' or 'modID' variables upon submission to the index.php 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.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Confidentiality,
Loss of Integrity
Exploit:
Exploit Public
OSVDB:
Web Related
Solution
Upgrade to version 3.1 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.