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Puppy Raffle
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AI First Flight
Puppy Raffle
AI First Flight #1
Beginner Friendly
Foundry
Solidity
NFT
EXP
AI First Flight
EXP
Jul 21st, 2026 → Jul 21st, 2026
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6 / 6
Submissions
Severity
Validity
Tags
Author
#1
Reentrancy in `refund()` allows a malicious player to drain the entire contract balance
High
Valid
[H-02] Reentrancy Vulnerabi...
mohdhuzaifah0786
#2
Weak, predictable randomness in `selectWinner()` lets an attacker rig the winner and NFT rarity
High
Valid
[H-03] Randomness can be gamed
mohdhuzaifah0786
#3
Unsafe uint64 cast and overflow of `totalFees` corrupts accounting and permanently locks protocol fees
High
Valid
[H-05] Typecasting from uin...
mohdhuzaifah0786
#4
Unbounded O(n^2) duplicate check in `enterRaffle()` causes a gas-cost denial of service
Medium
Valid
[M-01] `PuppyRaffle: enterR...
mohdhuzaifah0786
#5
Strict balance equality in `withdrawFees()` lets anyone permanently lock protocol fees with force-fed ETH
Medium
Valid
[M-02] Slightly increasing ...
mohdhuzaifah0786
#6
Refunded players are never removed from `players`, corrupting prize/fee math and bricking `selectWinner()`
High
Valid
[H-04] `PuppyRaffle::refund...
mohdhuzaifah0786
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