osCommerce is a popular open source E-Commerce application. The admin console contains a file management utility that allows administrators to upload, download, and edit files. This could be abused to allow unauthenticated attackers to execute arbitrary code with the permissions of the webserver.
e74aaeea615a430a6f4a22d1a117d3048d29172d6f0b6fb720906609e397a0ff