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ExpressionEngine "avatar" Script Insertion Vulnerability

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Release Date:  2009-03-23    Last Update:  2009-03-27    Views:  3,271

Secunia Advisory SA34379

Where:

From remote

Impact:

Cross Site Scripting

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A vulnerability has been reported in ExpressionEngine, which can be exploited by malicious users to conduct script insertion attacks.

Input passed via the "avatar" parameter in system/index.php (when "M" is set to "select_avatar" and "C" is set to "myaccount") is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in the context of an affected site when the malicious avatar is displayed.

The vulnerability is reported in versions 1.6.4 to 1.6.6.


Solution:
The vulnerability is reportedly fixed in version 1.6.7.

Provided and/or discovered by:
Adam Baldwin, nGenuity Information Services

Original Advisory:
nGenuity:
http://www.ngenuity.org/wordpress/2009/01/28/ngenuity-2009-003-expressionengine-persistent-cross-site-scripting/

ExpressionEngine:
http://expressionengine.com/docs/changelog.html#v167

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: ExpressionEngine "avatar" Script Insertion Vulnerability

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