### 简要描述：
学习中......少装不努力，老大搞IT！！！
### 详细说明：
ｐｈｐｙｕｎ 个人会员中心
member/model/index.class.php
$_COOKIE["usertype"];参数存在注入，
从下面代码中可以看到$data["usertype"] 直接读取COOKIE的值，带入到sql中，
sql未对值进行过滤处理
```
function msg_action(){
if($_GET["del"]){
$nid=$this->obj->DB_delete_all("userid_msg","`id`='".$_GET["del"]."' and `uid`='".$this->uid."'");
isset($nid)?$this->obj->ACT_msg("index.php?C=msg","删除成功"):$this->obj->ACT_msg("index.php?C=msg","删除失败");
}
$this->public_action();
$urlarr=array("C"=>"msg","page"=>"{{page}}");
$pageurl=$this->url("index","index",$urlarr);
$this->get_page("userid_msg","`uid`='".$this->uid."' and type!='1' order by id desc",$pageurl,"20");
if($_GET["c_uid"]){
$data["c_uid"]=$_GET["c_uid"];
$data["inputtime"]=mktime();
$data["p_uid"]=$_COOKIE["uid"];
$data["usertype"]=$_COOKIE["usertype"];
$data["com_name"]=$_GET["c_name"];
$haves=$this->obj->DB_select_once("blacklist","`p_uid`=".$data["p_uid"]." and `c_uid`=".$data["c_uid"]." and `usertype`=".$data["usertype"]."");
if(is_array($haves)){
$this->obj->ACT_msg($_SERVER['HTTP_REFERER'],"该用户已在您黑名单中");
}else{
$nid=$this->obj->insert_into("blacklist",$data);
$this->obj->DB_delete_all("userid_msg","`uid`=".$data["p_uid"]." and `fid`=".$data["c_uid"].""," ");
$nid?$this->obj->ACT_msg($_SERVER['HTTP_REFERER'],"操作成功"):$this->obj->ACT_msg($_SERVER['HTTP_REFERER'],"操作失败");
}
}
```
```
function DB_select_once($tablename, $where = 1, $select = "*") {
$cachename=$tablename.$where;
if(!$return=$this->Memcache_set($cachename)){
$SQL = "SELECT ".$select." FROM " . $this->def . $tablename . " WHERE ".$where." limit 1";
echo $SQL;
$query = $this->db->query($SQL);
$return=$this->db->fetch_array($query);
$this->Memcache_set($cachename,$return);
}
return $return;
}
```
[<img src="https://images.seebug.org/upload/201404/25084311c1c8f2da7df4e5e672a17db8e14d466d.png" alt="QQ截图20140425081528.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201404/25084311c1c8f2da7df4e5e672a17db8e14d466d.png)
### 漏洞证明：
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