source: https://www.securityfocus.com/bid/37962/info

MiFi 2352 is prone to an information-disclosure vulnerability that may expose sensitive information.

Successful exploits will allow authenticated attackers to obtain passwords, which may aid in further attacks.

MiFi 2352 access point firmware 11.47.17 is vulnerable; other versions may also be affected. 

The following example URIs are available:

http://www.example.com/config.xml.sav
http://www.example.com/config.xml.save