Summary

Rewards are set to whole numbers, but when sent to the contract, they are not properly accounted for due to decimal handling issues. Claimants receive the smallest units leaving money behind in the pot

Vulnerability Details

Rewards are specified as whole numbers, but when transferred or received by the contract, they are incorrectly handled as the smallest units (e.g., wei) instead of the intended amounts.
This discrepancy occurs during both sending and receiving of rewards, leading to incorrect distribution and leftover funds.

Impact

Underpayment to Claimants: Claimants receive less than the intended amount due to improper conversion of reward units.
The issue leads to underpayment of rewards and leftover funds, which affects the accuracy of payouts.

Tools Used

Unit tests

Recommendations

Convert Rewards to Wei: When setting or transferring rewards, convert values to wei to ensure proper handling and storage.