XC20Wrapper.sol can be hijacked via Upgradable.sol#setup

Lines of code Vulnerability details Impact XC20Wrapper.sol can be hijacked at any time Proof of Concept function setupbytes calldata data external override // Prevent setup from being called on the implementation if implementation == address0 revert NotProxy; setupdata; function setupbytes callda...

[WP-H3] Imprecise management of users' allowance allows the admin of the upgradeable proxy contract to rug users

Lines of code Vulnerability details In the current implementation, when there is a fee on follow or collect, users need to approve to the follow modules or collect module contract, and then the Hub contract can call processFollow and transfer funds from an arbitrary address as the follower...

SAILFISH System to Find State-Inconsistency Bugs in Smart Contracts

A group of academics from the University of California, Santa Barbara, has demonstrated what it calls a "scalable technique" to vet smart contracts and mitigate state-inconsistency bugs, discovering 47 zero-day vulnerabilities on the Ethereum blockchain in the process. Smart contracts are program...

reputation risk via upgradable contracts

Handle gpersoon Vulnerability details Impact The contract SwappableYieldSource is upgradable. This means the owner could upgrade and change the contract so any new functionality. Amongst others the owner could retrieve all the tokens of the Yieldsource and transfer them out. The project could sti...