Cross-Site Scripting (XSS) in Zikula Application Framework

[High-Tech Bridge Security Research <advisory@xxxxxxxxxxxx>]

Advisory ID: HTB23178
Product: Zikula Application Framework
Vendor: Zikula Software Foundation
Vulnerable Version(s): 1.3.5 build 20 and probably prior
Tested Version: 1.3.5 build 20
Advisory Publication:  October 16, 2013  [without technical details]
Vendor Notification: October 16, 2013 
Vendor Patch: October 31, 2013 
Public Disclosure: November 13, 2013 
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2013-6168
Risk Level: Medium 
CVSSv2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Solution Status: Fixed by Vendor
Discovered and Provided: High-Tech Bridge Security Research Lab ( 
https://www.htbridge.com/advisory/ ) 

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Advisory Details:

High-Tech Bridge Security Research Lab discovered vulnerability in Zikula 
Application Framework, which can be exploited to perform Cross-Site Scripting 
(XSS) attacks.


1) Cross-Site Scripting (XSS) in Zikula Application Framework: CVE-2013-6168

1.1 The vulnerability exists due to insufficient sanitisation of user-supplied 
data in "returnpage" HTTP GET parameter passed to "/index.php" script. A remote 
attacker can trick a logged-in user to open a specially crafted link and 
execute arbitrary HTML and script code in browser in context of the vulnerable 
website.

The exploitation example below uses the "alert()" JavaScript function to 
display "ImmuniWeb" word:

http://[host]/index.php?module=users&type=user&func=login&returnpage=%22%3E%3Cscript%3Ealert%28%27ImmuniWeb%27%29;%3C/script%3E

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Solution:

Update to Zikula 1.3.6 build 19

More Information:
https://github.com/zikula/core/issues/1364
http://community.zikula.org/index.php?module=News&func=display&sid=3132

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References:

[1] High-Tech Bridge Advisory HTB23178 - 
https://www.htbridge.com/advisory/HTB23178 - Cross-Site Scripting (XSS) in 
Zikula Application Framework.
[2] Zikula - http://zikula.org - Zikula is an open source MVC web application 
framework, released under the LGPLv3, that allows you to rapidly build websites 
for any application.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - 
international in scope and free for public use, CVE® is a dictionary of 
publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to 
developers and security practitioners, CWE is a formal list of software 
weakness types.
[5] ImmuniWeb® - http://www.htbridge.com/immuniweb/ - is High-Tech Bridge's 
proprietary web application security assessment solution with SaaS delivery 
model that combines manual and automated vulnerability testing.

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Disclaimer: The information provided in this Advisory is provided "as is" and 
without any warranty of any kind. Details of this Advisory may be updated in 
order to provide as accurate information as possible. The latest version of the 
Advisory is available on web page [1] in the References.