VERDICT —UNRATED
Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.
Root cause
Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.
▰ PROOF OF CONCEPT
DEFIHACKLABS
src/test/2024-04/XBridge_exp.sol
view forked test on github ↗Reproducible Foundry test fork from SunWeb3Sec/DeFiHackLabs. Clone the repo, run forge test against the file path above, and replay the exploit against a mainnet fork at the historical block. Use for reproduction only — not for live targets.
Forensic narrative
The cross-chain bridge project XBridge was exploited due to a smart contract vulnerability on the Ethereum Mainnet and the BNB chain, resulting in a loss of approximately $1.44 million. Attack method (per SlowMist): Contract Vulnerability. Reported loss: $ 1,440,000.
Primary source
https://etherscan.io/tx/0x903d88a92cbc0165a7f662305ac1bff97430dbcccaa0fe71e101e18aa9109c92 ↗Sourced from
slowmist
Technical record
- chain
- ethereum
- protocol
- XBridge
- bug_class
- logic
- date_occurred
- 2024-04-24
- loss_usd
- $1,440,000
- source_id
- sm:xbridge::2024-04-24
Related — same bug class· logic