source: https://www.securityfocus.com/bid/10617/info

Cart32 is reported prone to a cross-site scripting vulnerability. This issue presents itself due to insufficient sanitization of user-supplied data.

A remote attacker can exploit this issue by creating a malicious link to the vulnerable application that includes hostile HTML and script code. If a user follows this link, the hostile code renders in the web browser of the victim user. Theft of cookie-based authentication credentials and other attacks is possible.

Cart32 version 5.0 and prior are considered prone to this issue. 

http://www.example.com/scripts/cart32.exe/GetLatestBuilds?cart32=&lt;script&gt;alert('XSS')&lt;/script&gt;