Vulnerabilities > Block18 > Medium

DATE CVE VULNERABILITY TITLE RISK
2018-06-25 CVE-2018-12703 Improper Input Validation vulnerability in Block18
The approveAndCallcode function of a smart contract implementation for Block 18 (18T), an tradable Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract's balances into their account) because the callcode (i.e., _spender.call(_extraData)) is not verified, aka the "evilReflex" issue.
network
low complexity
block18 CWE-20
5.0