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Top-Immunefi-Vulnerabilities/redacted-cartel.md
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@ -8,9 +8,9 @@
* The vulnerability was rated as critical because it would have allowed a malicious attacker to assign a user’s allowance to themselves, enabling the attacker to steal that user’s funds.
* The purpose of ERC-20’s `approve(spender, amount)` function is to allow any address to spend the tokens on behalf of the tokens’ owner.
* The purpose of ERC20’s `approve(spender, amount)` function is to allow any address to spend the tokens on behalf of the tokens’ owner.
* The vulnerability here consisted of a faulty implementation of standard ERC-20 functions in REDACTED’s wxBTRFLY token, which is a wrapped version of the xBTRFLY.
* The vulnerability here consisted of a faulty implementation of standard ERC20 functions in REDACTED’s wxBTRFLY token, which is a wrapped version of the xBTRFLY.
### Vulnerability
@ -42,7 +42,7 @@ where `allowance(sender, recipient)` should be `allowance(sender, msg.sender)`.
<br>
[Here](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol) is how OpenZeppelin implements this function for `ERC-20`:
[Here](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol) is how OpenZeppelin implements this function for `ERC20`:
```
function transferFrom(