CubeCart allows for an external entity (such as Google, Shopzilla, etc) to request a "product feed". In admin, you can set a "password" that, when a querystring containing this password (and other things) is given to CubeCart, CubeCart will return a CSV with all your products.
I need someone to corroborate this behavior on their store. Try an access number that is wrong, and also the correct access number.
/admin.php?_g=products&node=export&page=1&per_page=5000&format=cubecart&node=export&access=12345
You must be logged out as an admin, since the external entity won't be.