The question is how to keep the cupcakes fresh. If it’s only for a couple of days, then you are golden.
Place in a plastic storage bag or container. Cupcakes keep best when stored in an airtight container.
The Science Of Dry Cupcakes
However, if there are a lot of cupcakes or they need to keep for more than two days, then you have to do more than leave them out on the kitchen counter. The first thought is to put in the refrigerator. That is not a good idea. Cupcakes stored in a refrigerator will dry out. In fact, placing cupcakes in the refrigerator forwards the process of crystallization in the sugar and flour, making the cupcakes go stale fast. The only time you may want to consider placing cupcakes in the refrigerator is for a frosting emergency, if the frosting is melting rapidly.