ownerMintUsingTokenId can brick the whole contract

Lines of code Vulnerability details Impact With the function ownerMintUsingTokenId, it is possible for the owner to mint a token with an arbitrary token ID. However, this can brick the whole contract and cause a situation where no more mints / buys are possible. This happens when a token ID is...

updateValset() Insufficient validation of new validator set may brick the contract

Lines of code Vulnerability details In Gravity.solupdateValset, while the signatures of the current validators are verified and = powerThreshold is checked, there is one important validation should be done: check the cumulative power of the new validator set to ensure the contract has sufficient...