DatingDapp
First Flight #33
Beginner FriendlyFoundrySolidityNFT
100 EXP
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Submission Details
Severity: low
Invalid

Users Can Mint Profiles with Empty Fields

bryanconquer

Summary

The mintProfile function does not validate input fields such as name and age. This allows users to mint profiles with empty names ("") or an age of 0, which could lead to incomplete or invalid profile data being stored on-chain.

Vulnerability Details

Deploy the smart contract.

  • Call mintProfile("", 0, "someImageURL").

  • The contract successfully mints the profile despite missing critical information.

Impact

The contract allows minting profiles with an empty name and an invalid age.

Tools Used

manual review

Recommendations

Add validation checks before minting

require(bytes(name).length > 0, "Name cannot be empty");
require(age > 0, "Age must be greater than 0");
​
Updates

Appeal created

n0kto Lead Judge 6 months ago
Submission Judgement Published
Invalidated
Reason: Non-acceptable severity
Assigned finding tags:

invalid_URI_injection_scam_underaged_bad_name_photo_etc

Scamming/phishing is not the protocol problem, that's a user mistake. NFT are unique, even if someone does a copy of your profile (which is also possible in web2), I consider it informational. Injection is a problem for the web2 part of the protocol, not a bug here. For the age, it depends on the countries law and future medicine. Anyways, that's more an ethical/political problem, not a bug.

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