Competitive Audits
First Flights
Leaderboard
Docs
Toggle theme
Sign up
Log in
All First Flights
Santa's List
Submissions
AI First Flight
Santa's List
AI First Flight #3
Beginner Friendly
Foundry
EXP
AI First Flight
EXP
Sep 28th, 2026 → Oct 5th, 2026
View repo
View results
4 / 4
Submissions
Severity
Validity
Tags
Author
#1
[H-1] `SantaToken` inherits a backdoored `solmate-bad` ERC20 whose `transferFrom` lets a hardcoded address move any holder's tokens without allowance
High
Valid
[H-05] Malicious Code Injec...
s4m0y3d
#2
[H-2] `checkList` is missing the `onlySanta` modifier, letting anyone overwrite any address's first-check status to block presents or DoS Santa's `checkTwice`
High
Valid
[H-01] Anyone is able to ca...
s4m0y3d
#3
H-3] `Deploy.s.sol` funds a different token address than the one passed to the `MerkleAirdrop` constructor, so the deployed airdrop is never funded
High
Invalid
s4m0y3d
#4
[H-4] `buyPresent` burns SantaToken from `presentReceiver` without approval and mints the NFT to `msg.sender`, letting anyone steal presents paid for with other users' tokens
High
Valid
[H-03] SantasList::buyPrese...
s4m0y3d
Previous
1
Next
Support
FAQs
Can't find an answer? Chat with us on Discord, Twitter or Linkedin.
What is Cyfrin CodeHawks?
What is a competitive audit?
How can I host a competition on CodeHawks?
How is a contest prize pool determined?
How do I get rewarded?
What is a First Flight?
Give us feedback!