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[SA20977] Sport Slo Advanced Guestbook Script Insertion Vulnerabilities

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Jul 10 2006 - 07:47:05 CDT


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Hardcore Disassembler / Reverse Engineer

Reversing must be a passion as your skills will be challenged
on a daily basis and you will be working several hours
everyday in IDA, Ollydbg, and with BinDiff. Often, it is also
required that you write a PoC or even a working exploit to
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TITLE:
Sport Slo Advanced Guestbook Script Insertion Vulnerabilities

SECUNIA ADVISORY ID:
SA20977

VERIFY ADVISORY:
http://secunia.com/advisories/20977/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
From remote

SOFTWARE:
Sport Slo Advanced Guestbook
http://secunia.com/product/10960/

DESCRIPTION:
luny has discovered some vulnerabilities in Sport Slo Advanced
Guestbook, which can be exploited by malicious people to conduct
script insertion attacks.

Input passed to the "name" and "form" form field parameters in
guestbook.php 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 context of an affected site
when the malicious entry is viewed.

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

PROVIDED AND/OR DISCOVERED BY:
luny

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