Submission Details
Severity:
claimSingleReward Incorrect Index Check
Summary
The claimSingleReward function checks require(_index <= rewardsOwned[msg.sender].length, "Invalid index");, but the condition should be strictly less than (<), as array indices are zero-based and rewardsOwned[msg.sender].length is out of bounds.
Impact
The function should revert if the index is out of bounds.
Tools Used
manual
Recommendations
Change the <= to < to correctly handle the index bounds:
require(_index < rewardsOwned[msg.sender].length, "Invalid index");
Rewards breakdown
nSLOC
86This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
Live
The contest is live. Earn rewards by submitting a finding.
Appeals
This is your time to appeal against judgements on your submissions.
Appeals Review
Appeals are being carefully reviewed by our judges.