VulnerableBank

{{
  "language": "Solidity",
  "sources": {
    "contracts/VulnerableBank.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

contract VulnerableBank {
    mapping(address => uint256) public balances;

    function deposit() external payable {
        balances[msg.sender] += msg.value;
    }

    // Уязвимость: сначала отправка, потом обнуление
    function withdraw() external {
        uint256 amount = balances[msg.sender];
        require(amount > 0, "no balance");
        (bool ok, ) = msg.sender.call{value: amount}("");
        require(ok, "send failed");
        balances[msg.sender] = 0;
    }

    function getBankBalance() external view returns (uint256) {
        return address(this).balance;
    }
}
"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "evmVersion": "paris",
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}