Calyptus462.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

// https://x.com/calyptus_web3/status/1855890728951369798
// Identify the vulnerability in the provided proxy contract setup and propose a solution.

// The base logic contract
contract BaseContractV1 {
    uint256 public count;
    address public owner;
    constructor(){
        owner = msg.sender;
    }

    function increment() external {
        require(msg.sender == owner,"Only owner can increment");
        count++;
    }
}

// The upgraded logic contract, intended to be used with a proxy.
contract BaseContractV2 {
    uint256 public count;
    address public owner;
    string public name;

    function increment() external {
        require(msg.sender == owner, "Only owner can increment");
        count += 2;
    }
    function setName(string memory _name) external {
        require(msg.sender == owner, "Only owner can set the name");
        name = _name;
    }
}