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TITLE:
WebAPP Guestbook PRO Module Message Script Insertion

SECUNIA ADVISORY ID:
SA15290

VERIFY ADVISORY:
http://secunia.com/advisories/15290/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Guestbook PRO 3.x (module for WebAPP)
http://secunia.com/product/5078/

DESCRIPTION:
SoulBlack Security Research has reported a vulnerability in the
Guestbook PRO module for WebAPP, which can be exploited by malicious
people to conduct script insertion attacks.

Input passed to the title and content of a message is not properly
sanitised before being used. This can be exploited to inject
arbitrary HTML and script code, which will be executed in a user's
browser session in context of an affected site when the malicious
message is viewed.

The vulnerability has been reported in version 3.2.1. Other versions
may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
SoulBlack Security Research

ORIGINAL ADVISORY:
http://www.soulblack.com.ar/repo/papers/guesbookpro_advisory.txt

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