Adshares Suffers $628K Bridge Exploit Due to Invalid Transaction IDs

Adshares, a blockchain-based advertising platform, has fallen victim to a bridge exploit worth approximately $628,000. The incident occurred due to an attacker's ability to mint fake wrapped ADS tokens on Ethereum using invalid native-chain transaction IDs.

The attack took advantage of the reserve logic behind wrapped assets, where native coins are removed from circulation and held in reserve. In this case, the fake mint broke the economic assumption that reserve balances remain greater than or equal to wrapped supply.

The alleged exploit path is a classic example of a bridge-verification failure, where the system accepted signed mint instructions without properly validating the referenced native-chain transactions. This allowed the attacker to sell the fake tokens into real liquidity, leaving traders and pools holding unbacked assets.