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Insecure Library Loading
Moderately critical

G-Book "g_message" Script Insertion Vulnerability

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Release Date:  2006-03-27    Last Update:  2006-03-30    Views:  8,522

Secunia Advisory SA19414

Where:

From remote

Impact:

Cross Site Scripting

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


matrix_killer has discovered a vulnerability in G-Book, which can be exploited by malicious people to conduct script insertion attacks.

Input passed to the "g_message" parameter in guestbook.php isn't sanitised before being stored as a guestbook entry. This can be exploited to execute arbitrary HTML and script code in the administrator user's and the user's browser session in context of an affected website when a malicious guestbook entry is viewed.

The vulnerability has been confirmed in version 1.0. Other versions may also be affected.


Solution:
Edit the source code to ensure that input is properly sanitised.

Provided and/or discovered by:
matrix_killer, h4cky0u Security Forums.

Original Advisory:
http://www.h4cky0u.org/advisories/HYSA-2006-006-g-book.txt

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: G-Book "g_message" Script Insertion Vulnerability

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