Self-delgated users can have their delegation unknowingly hijacked during crowdfunding

Lines of code Vulnerability details Impact Self-delegation can be hijacked Proof of Concept PartyGovernance.solL886-L906 function adjustVotingPoweraddress voter, int192 votingPower, address delegate internal VotingPowerSnapshot memory oldSnap = getLastVotingPowerSnapshotForVotervoter; address...

ERC721Votes: Token owners can double voting power through self delegation

Lines of code Vulnerability details The owner of one or many ERC721Votes tokens can double their voting power once and only once by delegating to their own address as their first delegation. Scenario This exploit relies on the initial default value of the delegation mapping in ERC721Votes, which ...

User can lose all governance power

Lines of code Vulnerability details Impact Contract is missing self delegation in case of delegateBySig function. This means if delegateBySig is called with zero address delegatee then User votes will be burned instead of setting delegatee to signatory Proof of Concept 1. User calls delegateBySig...

A NFT can be delegated to many NFTS

Lines of code Vulnerability details In VoteEscrowDelegation.sol in the function delegate, there is no check about if the tokenId NFT has already been delegated. Thus is it possible to delegate voting power multiple time. It's even possible to self delegate tokenId = toTokenId multiple times. By...