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A comprehensive walkthrough of all 18 challenges in Damn Vulnerable DeFi V4, covering smart contract vulnerabilities and exploit techniques. Each challenge is broken down with related concepts, vulnerability explanations, and step-by-step attack strategies. Topics covered include ERC4626 flash loan manipulation, EIP-712 meta-transactions, oracle manipulation via Uniswap V1/V2/V3, reentrancy, governance attacks, proxy storage collisions, ABI calldata smuggling, rounding asymmetry exploits, and token bridge anomalies. Code snippets and attack flows are provided for each challenge.

Damn Vulnerable DeFi V4 Walkthrough: Challenges 1–18 Breakdown