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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
Feb 13th, 2026 → Feb 14th, 2026
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10 / 10
Submissions
Severity
Validity
Tags
Author
#1
Reentrancy in refund() Allows Complete Fund Drain
High
Valid
[H-02] Reentrancy Vulnerabi...
quanghoa27061998
#2
Denial of Service via O(n^2) Duplicate Check in enterRaffle()
Medium
Valid
[M-01] `PuppyRaffle: enterR...
quanghoa27061998
#3
Integer Overflow in totalFees Due to Unsafe uint64 Cast
High
Valid
[H-05] Typecasting from uin...
quanghoa27061998
#4
Weak Randomness — Winner and NFT Rarity Are Predictable
High
Valid
[H-03] Randomness can be gamed
quanghoa27061998
#5
Mismatched ETH Accounting in selectWinner() — Refunded Players Still Counted in Prize/Fee Calculation
High
Valid
[H-04] `PuppyRaffle::refund...
quanghoa27061998
#6
getActivePlayerIndex() Returns 0 for Both Index-0 Player and Not-Found
Low
Valid
[L-01] Ambiguous index retu...
quanghoa27061998
#7
Missing address(0) Validation in changeFeeAddress()
Low
Invalid
quanghoa27061998
#8
Invalid JSON in tokenURI() Metadata — Unquoted Rarity Value
Low
Invalid
quanghoa27061998
#9
Missing address(0) Validation in enterRaffle() — Allows Unrefundable and DoS-Causing Entries
Low
Invalid
quanghoa27061998
#10
Strict Balance Check in withdrawFees() Enables Permanent DoS via selfdestruct
Medium
Valid
[M-03] Impossible to win ra...
quanghoa27061998
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