NFT transfer approvals are not removed and cannot be revoked thus leading to loss of NFT tokens

Handle 0xRajeev Vulnerability details Impact NFT transfer approvals that are set to true in approveTransferERC721 are never set to false and there is no way to remove such an nft approval. Impact-1: The approval is not removed set to false after a transfer in transferERC721. So if the NFT is ever...