Not questioning your wife's ability to work a springform pan...but....is it closed properly?
Is it defective in it's closing ability?
Finally, here's a solution. Take a large sheet of foil, enough to cover the sides and bottom of the spring pan. Lay it out on a counter and place the ring on top of it. Bring the edges of the foil up through the ring, making high walls and a false bottom. Then, place the original pan's bottom onto the foil. Snap it into place and lock the pan. Press the foil as firmly as you can against the sides of the pan. You don't want to have crease marks in the finished product. Grease and flour as usual, being careful not to tear the foil.
Proceed as the recipe instructs.
You cannot simply wrap the bottom of the pan on the outside. It will still leak, only now it will leak out the bottom and over the foil.
Or, you could simply return them to the place of purchase and exchange them for some that lock more correctly.
How can we sleep while our beds are burning???