Leaderboard
892All-time rank
xWin Finance
Jun 25, 2021
$270K
Lost
$270K
Recovered
$0
Net loss
$270K
Unrecovered0% recovered
A flashloan attacker exploited invalid slippage control logic in xWin's reward distribution system, which did not properly validate transaction slippage limits. The attacker obtained a flashloan of 76,000 BNB, manipulated the swap price, and extracted 303,998 XWIN tokens by exploiting the broken slippage validation in the _swapBNBToTokens function.
How the exploit worked
View reproducible PoCsubscription-incentive-mechanism.
Lost: ~$300k
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- DeFi
- Classification
- Input Validation
- Technique
- Missing Input Validation
- Attribution
- Unknown
- Chains
BSC
Event timeline
- Jun 25, 2021Exploit executed — $270K drained via missing input validation
- Attributed to Unknown
- Recovery status Unrecovered 0%
Data credits
- DefiLlamaIncident record, amounts, chains, recovery data and logo
- DeFiHackLabsExploit analysis and reproducible proof-of-concept (by SunWeb3Sec)
