Summary

The protocol promises users that they can "Collect rare NFTs, trade them with friends...." However, there is no function or mechanism for the user to trade or swap an NFT

Vulnerability Details

The protocol is missing a function to allow users to trade NFTs with other users. This is a flaw as such functionality is promised by the protocol

Impact

This is a medium bug. No funds can be compromised by this bug. However, NFT trading is known to be very popular among communities. Many users may engage with the "Trick or Treat" protocol with a view to trading NFTs and will be unable to do so - they will most certainly feel tricked!

Tools Used

n/a

Recommendations

Add functionality to allow users to trade with other users