Submission Details
Severity:
Unsafe ERC20 Operations should not be used
Summary
ERC20 functions may not behave as expected. For example: return values are not always meaningful. It is recommended to use OpenZeppelin's SafeERC20 library.
Vulnerability Details
Found in src/TwentyOne.sol [Line: 170]
payable(player).transfer(2 ether); // Transfer the prize to the player
Impact
Tools Used
Recommendations
using SafeERC20 library
Rewards breakdown
nSLOC
147This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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