The error FCKeditor (referred to as FCK) was discovered about 4 years ago, today Ad happened to try again and it turned out that there are still many unfixed sites, including some Vietnamese sites.

Exploiting the FCK error on the Website helps us to upload any file to the victim’s Web without Admin rights.

Today I will guide you to exploit this error, note, some sites go to the right path but can’t be uploaded because the website admin has fixed it, so I should find another site to exploit.

This article is for educational and research purposes only. You do not take advantage to destroy or damage the reputation of other people’s Website

How to proceed:

Step 1: Go to Google and type the command

inurl:fckeditor/editor/filemanager/connectors/uploadtest.html

Or click the link below for quick: FCK . mining link

Step 2: Go to one of the Websites listed by Google, to conduct error exploitation

VD: http://www.livegaya.com/public/fckeditor/editor/filemanager/connectors/

Step 3:

Click on the link uploadtest.html

There will be an upload table here

http://www.livegaya.com/public/fckeditor/editor/filemanager/connectors/uploadtest.html

Note:

• Select the “File Uploader” to use: Choose PHP
• Upload a new file: Upload a txt file to see. In the picture I will upload the file hacked.txt
• Press Send it to Server to upload

Uploaded File URL: This is the file path that has been uploaded to the Website.

So my newly uploaded file will have the path as:

http://www.livegaya.com/userfiles/hacked.txt

Good luck!