The cabinet door is used. Why is it loose?
If it is a board problem, there is no good way to change the side plate. If the hinge is broken, just change the hinge.
One is the problem of sheet metal, it may take time to expand with damp. One is the hinge problem. If the hinge is not good, frequent opening and closing of the door will reduce the service life of the hinge. It might hinge loose. You need a screwdriver and you can adjust it slightly
