Challenge: Santa’s IT department has recently discovered the power of version control software. However, they are not prepared for such power and have made a critical flaw… Can you find the flag?

Challenge: Santa visited a Gravity Falls town. While visiting, he met a triangular man called Bill, who stole his gifts. To get them back, he must decode some strange hieroglyphics symbols. Help him do it and save Christmas!

Challenge: Santa’s elves created a brand new API for naughty and nice list at http://elfs.owasp.si:8000/ with advanced protections. But did they get the protections right? Be nice.