This is a vulnerability which allows a remote attacker to upload his/her deface or shell on the website.
Follow the Steps=>
1). Go to google and search this dork. :)
Google Dork :
2). After the searching the above dork, you will get websites vulnerable to this.
3). Select any website, upload your deface or shell there.
4). To view your deface or shell, just click on your file name after its uploaded.
Happy Hacking .ONly for Educational Purposes ..!!!!!
File Thingie Shell Upload
File Thingie Exploit