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List: bugtraq
Subject: WP Good News Themes - Client Side Cross Site Scripting Web Vulnerability
From: Vulnerability Lab <research () vulnerability-lab ! com>
Date: 2016-02-29 13:17:47
Message-ID: 56D444FB.6040400 () vulnerability-lab ! com
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Document Title:
===============
WP Good News Themes - Client Side Cross Site Scripting Web Vulnerability
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1771
Release Date:
=============
2016-02-29
Vulnerability Laboratory ID (VL-ID):
====================================
1771
Common Vulnerability Scoring System:
====================================
3
Product & Service Introduction:
===============================
http://www.momizat.net/
http://themeforest.net/item/goodnews-responsive-wordpress-newsmagazine/1150692
Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a client-side cross \
site scripting web vulnerability in the official Wordpress Good News Themes.
Vulnerability Disclosure Timeline:
==================================
2016-02-29: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
Momizat Inc
Product: Good News - Themes (Web-Application) 2016 Q1
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Technical Details & Description:
================================
Multiple client-side web vulnerabilities has been discovered in the official \
Wordpress Good News Themes wordpress web-application. The client-side validation \
issue allows remote attacker to inject client-side script codes to compromise browser \
to application requests.
The vulnerability is located in the `s` value of the `Good News themes` module. \
Remote attackers are able to inject client-side script code to the vulnerable index \
GET method request. The `s` value is wrong encoded and not filtered by the regular \
validation. The attack vector of the issue is client-side and the request method to \
execute is GET.
The security risk of the client-side vulnerabilities is estimated as medium with a \
cvss (common vulnerability scoring system) count of 3.0. Exploitation of the \
security vulnerability requires no privileged web-application user account and low \
user interaction. Successful exploitation of the vulnerabilities results in session \
hijacking, non-persistent phishing, non-persistent external redirects, \
non-persistent load of malicious script codes or non-persistent web module context \
manipulation.
Request Method(s):
[+] GET
Vulnerable Module(s):
[+] EGood News - Themes
Vulnerable Parameter(s):
[+] s
Proof of Concept (PoC):
=======================
The client-side cross site scripting web vulnerability can be exploited by remote \
attackers without privileged web-application user account and with low user \
interaction (click|link). For security demonstration or to reproduce the \
vulnerability follow the provided information and steps below to continue.
PoC: Example
http://goodnews.localhost:8080/?s=[CLIENT-SIDE CROSS SITE SCRIPTING VULNERABILITY!]
PoC: Exploitation
http://goodnews.localhost:8080/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/fa/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/filmes/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/blog/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/?s="><script>alert(document.cookie)</script>
http://goodnews.localhost:8080/?s=?s="><script>alert(document.cookie)</script>
Solution - Fix & Patch:
=======================
The vulnerability can be patched by a secure parse and encode of the vulnerable `s` \
value. Restrict the input and disallow usage of special chars in the parameter GET \
method request to prevent an execution of client-side script codes.
Security Risk:
==============
The security risk of the client-side cross site scripting web vulnerability in the \
good news themes is estimated as medium. (CVSS 3.0)
Credits & Authors:
==================
Milad Hacking - (milad.hacking.blackhat@Gmail.com) [http://fullsecurity.org]
Thanks: iliya Norton - Milad Hacking - Mohamad Ghasemi- irhblackhat - Distr0watch - \
N3TC4T - Ac!D - Mr.G}{o$t - S4livan - MRS4JJ4D - SeCrEt_HaCkEr , Nazila Blackhat , \
Bl4ck_MohajeM, Xodiak , Ehsan Ice aka Ehsan Hosseini (EhsanSec.ir)
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=========================
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