Paidun: Meta Pool staking contract has serious vulnerabilities, users can mint mpETH for free

According to BlockBeats, on June 17th, according to Paidun monitoring, there is a serious vulnerability in the Meta Pool staking contract, allowing users to mint mpETH for free. This specific transaction resulted in the free minting of over 9700 mpETH (approximately $27 million), but due to the low liquidity of mpETH, the actual profit was only about 10 ETH.