First Flight #5: Santa's List

Summary

The current implementation of the tokenURI function in the NFT contract doesn't consider the potential impact of hard forks on NFT ownership. During a hard fork, the blockchain splits into two separate chains, and the current tokenURI function would return the same URI for both chains, potentially leading to confusion and ownership disputes.

Vulnerability Details

This vulnerability could lead to confusion and potential ownership disputes among NFT holders if the contract doesn't handle hard forks appropriately.

Impact

This vulnerability poses a severe threat to the integrity of NFT ownership. If not addressed, it could lead to:

• Ownership Disputes: Conflicting URI responses for the same NFT across different chains could lead to ownership disputes and potential legal ramifications.

• Market Disruption: Uncertainty regarding NFT ownership could disrupt NFT markets, potentially causing value fluctuations and eroding trust in the project.

• User Confusion: The lack of clear ownership identification could confuse NFT holders and hinder their ability to manage their assets effectively.

Tools Used

Manual Review

Recommendations

Incorporate chain ID verification into the tokenURI function. This can be achieved by adding the following line: