TomatoCart 1.x versions contain a flaw related to the /admin/json.php script's failure to properly restrict created files. This may allow an attacker to create arbitrary shell script to launch further attacks on the application server.
Disclosure Timeline:
2012-04-22: Contacted the vendor through email
2012-04-29: Vendor replied and the vulnerability detail was sent
2013-01-04: Vulnerability not fixed
2013-01-04: Vulnerability disclosed