Here are three specific DeFi smart contract vulnerabilities suitable for inclusion in a professional audit report. Each entry follows standard audit reporting conventions: Vulnerability Title, Severity, Description, Impact, and Recommendation.
1. Reentrancy Attack via Unchecked Callbacks
Severity: High
CWE: CWE-841 (Improper Enforcement of Behavioral Workflow)
Description:
The withdraw() function in the LendingPool contract allows users to withdraw funds and then calls an external contract via msg.sender.call{value: amount}(""). This external call occurs before the state variable userBalances[msg.sender] is updated to reflect the withdrawal. This violates the Checks-Effects-Interactions (CEI) pattern.
Impact:
A malicious contract can intercept the callback and re-enter the withdraw() function before the balance is reduced. This allows the attacker to withdraw more funds than their
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