Coinbase's Base Network Suffers $220K WETH Smart Contract Breach
Written by Ohris M. Greyoon, Blockchain & Crypto Expert
Source: Coinmarketcap
Updated: Oct 30 2025Exploit Details: CertiK identified a significant exploit on the Base blockchain, where an unverified smart contract drained 55 Wrapped Ether (WETH), valued at around $220,000, from a victim due to a vulnerability in the uniswapV3SwapCallback() function.
Security Recommendations: Users are advised to revoke approvals to the compromised contract address and to exercise caution when interacting with unverified contracts, as similar vulnerabilities have led to significant losses in the past.
About the author
Ohris M. Greyoon
Ohris M. Greyoon holds a Master’s in Computer Science from MIT and has 10 years of experience in blockchain technology and cryptocurrency markets. A pioneer in decentralized finance (DeFi) analysis, he leads Intellectia’s Crypto News, offering cutting-edge insights into digital assets.
