According to BlockSec monitoring, the multi-chain protocol DBXen has suffered a hacker attack, with an estimated loss of around $150,000. The root cause of the vulnerability lies in the protocol's inconsistent verification of sender identity when handling ERC-2771 meta-transactions. This inconsistency led to the system incorrectly recording users' burn batches without properly updating their active cycles. The attacker exploited this logical flaw to manipulate the reward calculation logic, causing the contract to mistakenly assume there were unprocessed burn records, thereby illegally extracting excessive fees and rewards during calls. http://(wublock123.com)/index.php?m=content&c=index&a=show&catid=6&id=58011