Wipe with vinegar first let it completely dry in the sun then try ammonia, do the job "out side"!
You could try my skunk removal recipe. The solution oxidizes pretty much anything.
1/3 cup dish soap
1/3 cup hydrogen peroxide (the regular first aid one)
1/3 cup baking soda.
Mix so it's the consistency of pancake batter. Apply, wait a bit then rinse.
But if you want to go an easier route, you can apply some shellac to the box. The real thing seals in odors pretty good.
Do be aware that vinegar will affect the longevity of the paper labels as it's acidic.
Thanks, that's really good to know.
I use Wood bleach to lighten and remove stuff. It would work and you have great recommendations below