I found this table on the curb a while back, less the leg hardware. No a relative could use it, and I'm wondering how to fix it up.
Cut a couple 2x4 sections to fill the truncated-triangular area and screw through them into all surfaces?
The legs have a hollow center drilled out, at the top, so I assume some metal piece with threaded holes fit there, and a metal plate anchored that to the skirt (?).
Another view:
While buying the hardware is the right answer, I would likely cut 45 angles on a 2x4, leaving an edge to match the inner part of the leg. I'd drill pilots and connect them to the leg with a bolt if the receiving hardware still exists.