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Cross-site Scripting (XSS) Vulnerabilities in Zimplit CMS

Advisory ID:HTB22715
Product:Zimplit CMS
Vendor:Zimplit
Vulnerable Versions:3.0 and probably prior
Tested Version:3.0
Advisory Publication:November 22, 2010 [without technical details]
Vendor Notification:November 22, 2010
Public Disclosure:December 6, 2010
Vulnerability Type:Cross-Site Scripting [CWE-79]
CVE Reference:CVE-2010-4513
Risk Level:Medium
CVSSv2 Base Score:4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in Zimplit CMS which could be exploited to perform cross-site scripting attacks.


1) Cross-site scripting (XSS) vulnerabilities in Zimplit CMS: CVE-2010-4513

1.1 The vulnerability exists due to input sanitation error in the "file" parameter in zimplit.php when "action" is set to "load". A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website.

Exploitation example:
http://host/path/zimplit.php?action=load&file=%3Cscript%3Ealert%28document.cookie%29%3C/script%3E

1.2 The vulnerability exists due to input sanitation error in the "client" parameter in English_manual_version_2.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website.

Exploitation example:
http://host/path/English_manual_version_2.php?client=c%27%22%3E%3Cscript%3Ealert%28document.cookie%2 9%3C/script%3E


Solution:
Currently we are not aware of any vendor-supplied patches or other solutions. The vendor was contacted in accordance to our Vendor Notification Policy but we didn't get any answer or feedback.


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References:
[1] High-Tech Bridge Advisory HTB22715 - https://www.htbridge.com/advisory/HTB22715 - Cross-site Scripting (XSS) Vulnerabilities in Zimplit CMS
[2] Zimplit CMS - zimplit.com - Zimplit is the easiest Content Management System (CMS) ever made. It is extremely lightweight, simple and customizable.
[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.

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