Joomla! nBill Component "message" Cross-Site Scripting Vulnerability

SA49004

CVE-2012-6514

27 Apr 2012

29 Jan 2013

Less Critical

Unpatched

nBill 2.x (component for Joomla)

From remote

Cross-Site Scripting

Cross-Site Scripting vulnerabilities allow a third party to manipulate the content or behaviour of a web application in a user's browser, without compromising the underlying system.

Different Cross-Site Scripting related vulnerabilities are also classified under this category, including "script insertion" and "cross-site request forgery".

Cross-Site Scripting vulnerabilities are often used against specific users of a website to steal their credentials or to conduct spoofing attacks.

A vulnerability has been discovered in the nBill component for Joomla!, which can be exploited by malicious people to conduct cross-site scripting attacks.

Input passed via the "message" parameter to index.php (when "option" is set to "com_nbill" and "task" is set to "generated-view") is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

The vulnerability is confirmed in version 2.3.2. Other versions may also be affected.

Filter malicious characters and character sequences using a proxy.

Jakub Galczyk.