Mogs

There no reason why not. You have already accepted there is some loss in the security. You will have to use different fixings as the flooring is unlikely to have sufficient thickness.

Coach bolts and a metal plate side would a good method, but you would need access to both sides, you could try hollow wall anchors.

The important thing is for you not the leave any tools around that can aid anyone's attempt to undo you fixings, especially as this is a tempory solution and you will want to be able to undo your work yourself at some time.