Seaport proxy is missing ERC20 approval, so it can't buy any order that is listed using an ERC20

Lines of code Vulnerability details Impact Seaport proxy is missing ERC20 approval, so it can't buy any order that is listed using an ERC20. Proof of Concept function execute BasicOrder calldata orders, bytes calldata ordersExtraData, bytes calldata extraData, address recipient, bool isAtomic,...

Maker buy order with no specified NFT tokenIds may get fulfilled in matchOneToManyOrders without receiving any NFT

Lines of code Vulnerability details The call stack: matchOneToManyOrders - matchOneMakerSellToManyMakerBuys - execMatchOneMakerSellToManyMakerBuys - execMatchOneToManyOrders - transferMultipleNFTs Based on the context, a maker buy order can set OrderItem.tokens as an empty array to indicate that...