DNN发邮件通知4.8.2有漏洞，最好升级到新版本。
原文如下：
Hello there,
I would like to inform you about critical security problems with previous releases of DotNetNuke.
If you haven't done already, you are strongly advised to upgrade DotNetNuke to 4.8.3 as soon as possible.
For more information please read following articles:
http://www.dotnetnuke.com
To download latest release of DotNetNuke please click here
Regards.