Summary: Core protocol logic.

Vulnerability Details:

• Reentrancy: SWC-107: External call may lead to reentrancy.

  (bool success, ) = contractAddress.call(data);

  Line: 110

• Unchecked Arithmetic: SWC-101: Subtraction can cause underflow.

  uint256 newBalance = totalBalance - withdrawalAmount;

  Line: 78

Impact: Potential exploitation of the protocol.

Tools Used: Manual code inspection.

Recommendations:

• Reentrancy Fix: Protect external calls with ReentrancyGuard.

  import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

• Arithmetic Fix: Use safe math for arithmetic operations.

  uint256 newBalance = SafeMath.sub(totalBalance, withdrawalAmount);