Quote from near the bottom of the above-referenced article:
"The Cupcake Store started there on a temporary basis, but in January moved to its own kiosk near Apricot Lane."
I will add too that there are cupcakes available in the parks. There are some at each of the candy shops. There's also a very tasty lemon cupcake at Hungry Bear Restaurant in Critter Country, and I thought it was really tasty even though lemon isn't my favorite thing. There's a Black Forest cupcake at Village Haus in Fantasyland, but I thought it was only ok even though I love chocolate.
When we were there in July we stumbled upon it in DTD. It was at a much smaller kiosk near Apricot Lane. It was very small so it is easy to miss..they did offer the same cupcakes as at the previous location though.
When we were there in July we stumbled upon it in DTD. It was at a much smaller kiosk near Apricot Lane. It was very small so it is easy to miss..they did offer the same cupcakes as at the previous location though.