source: http://www.securityfocus.com/bid/20109/info
 
Neon WebMail is prone to multiple input-validation vulnerabilities because it fails to sanitize user-supplied input. These issues include:
 
- an arbitrary-file-upload vulnerability
- an arbitrary-email-manipulation vulnerability
- multiple SQL-injection vulnerabilities
- an unauthorized-access vulnerability
- multiple directory-traversal vulnerabilities
- an HTML-injection vulnerability. 
 
An attacker can exploit these issues to compromise the affected application.
 
Versions 5.06 and 5.07 (build.200607050) are vulnerable to these issue; prior versions may also be affected.

http://www.example.com/neonwebmail/updatemail?ID=1&getpost=get&folderid=-1&tofolderid=-9&status=1&execute=move
http://www.example.com/neonwebmail/updatemail?ID=1&getpost=get&folderid=-9&tofolderid=100&status=1&execute=move