YCCMS 3.4 任意文件上传漏洞（一）

public function upLoad() {
if (isset($_POST['send'])) {
$_logoupload = new LogoUpload('pic',$_POST['MAX_FILE_SIZE']);
$_path = $_logoupload->getPath();
$_img = new Image($_path);
$_img->xhImg(960,0);
$_img->out();
//echo $_path;
$_logoupload->alertOpenerClose('图片上传成功！','..'.$_path);
} else {
exit('警告：文件过大或者其他未知错误导致浏览器崩溃！');
}
}

private function checkType() {
if (!in_array($this->type,$this->typeArr)) {
Tool::alertBack('警告：LOGO图片必须是PNG格式！');
}
}

private $typeArr = array('image/png','image/x-png');//类型合集