`tx.origin` is easily used by phishing

Once exploited, you will be married with a strange address and can't revert by yourself.

ERC721-520/src/contracts/marry3/marry3.sol

Lines 63 to 73 in 119031d

    
           function mint( 
        
               address _addressA, 
        
               address _addressB, 
        
               ERC721_520Token.Sex _sexA, 
        
               ERC721_520Token.Sex _sexB, 
        
               bytes calldata _signatureB, 
        
               bytes32[] calldata _merkleProof 
        
           ) external payable { 
        
               if (!isWhiteList(tx.origin, _merkleProof)) { 
        
                   require(_getPrice() <= msg.value, NO_ENOUGH_ETH); 
        
               }

More: https://hackernoon.com/hacking-solidity-contracts-using-txorigin-for-authorization-are-vulnerable-to-phishing#%3A%7E%3Atext=About+%40kamilpolak-%2Ctx.%2Care+vulnerable+to+phishing+attacks.

	function mint(
	address _addressA,
	address _addressB,
	ERC721_520Token.Sex _sexA,
	ERC721_520Token.Sex _sexB,
	bytes calldata _signatureB,
	bytes32[] calldata _merkleProof
	) external payable {
	if (!isWhiteList(tx.origin, _merkleProof)) {
	require(_getPrice() <= msg.value, NO_ENOUGH_ETH);
	}