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AirDropper
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AI First Flight
AirDropper
AI First Flight #5
Beginner Friendly
DeFi
Foundry
EXP
AI First Flight
EXP
Jun 15th, 2026 → Jun 15th, 2026
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10 / 10
Submissions
Severity
Validity
Tags
Author
#1
An eligible account can call claim() unlimited times to drain the entire airdrop to itself, stealing every other claimant's allocation
High
Valid
[H-02] Eligible users can c...
sub99
#2
Unclaimed airdrop tokens are permanently locked: claimFees withdraws only ETH, and there is no token rescue path
Low
Invalid
sub99
#3
Fee-on-transfer or non-standard airdrop token under-delivers: claim transfers amount but the recipient receives less, breaking allocations
Low
Invalid
sub99
#4
claim() has no msg.sender binding: anyone can force-claim for any eligible account, enabling fee-griefing and unwanted execution
Low
Invalid
sub99
#5
FEE is a hardcoded 1e9 wei (1 gwei), negligible and unable to deter the unlimited-replay drain
Low
Valid
[L-01] It Can Be Economical...
sub99
#6
Strict msg.value != FEE check reverts on any overpayment with no refund, a denial-of-service to careless claimers
Low
Invalid
sub99
#7
claimFees pushes ETH to owner via raw call with no pull fallback; a reverting owner permanently traps collected fees
Low
Invalid
sub99
#8
Claimed event parameters are not indexed, degrading off-chain claim tracking
Low
Invalid
sub99
#9
claimFees emits no event and has no zero-balance guard, reducing transparency and wasting gas on empty sweeps
Low
Invalid
sub99
#10
No replay protection: claim() never records claimed accounts, so the same Merkle proof can be reused to drain the airdrop token
High
Valid
[H-02] Eligible users can c...
sub99
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