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Cross-Site Scripting (XSS) vulnerability in gpEasy
From: advisory () htbridge com
Date: Wed, 23 Jan 2013 11:23:25 +0100 (CET)

Advisory ID: HTB23137
Product: gpEasy
Vendor: gpeasy
Vulnerable Version(s): 3.5.2 and probably prior
Tested Version: 3.5.2
Vendor Notification: January 2, 2013 
Vendor Patch: January 2, 2013 
Public Disclosure: January 23, 2013 
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2013-0807
Risk Level: Low 
CVSSv2 Base Score: 2.6 (AV:N/AC:H/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/ ) 


Advisory Details:

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

1) Cross-Site Scripting (XSS) in gpEasy: CVE-2013-0807

The vulnerability exists due to insufficient sanitisation of user-supplied data in "section" HTTP GET parameter passed 
to "index.php" script. A remote attacker can trick logged-in administrator 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 administrator's cookies: 




Upgrade "include/tool/editing_page.php" script to the latest version from GitHub.

More Information:



[1] High-Tech Bridge Advisory HTB23137 - https://www.htbridge.com/advisory/HTB23137 - Cross-Site Scripting (XSS) 
vulnerability in gpEasy.
[2] gpEasy - http://gpeasy.com - gpEasy is a complete and easy to use Content Management System written in PHP.
[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. 


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.

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