bugtraq - Winn Guestbook v2.4.8c Stored XSS

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Message-ID: <9f15774c9df500f17ba222ef4ee51a96@g13net.com>
Date: Thu, 29 Dec 2011 07:32:45 -0500
From: tom <tom@...net.com>
To: <bugtraq@...urityfocus.com>
Subject: Winn Guestbook v2.4.8c Stored XSS

# Exploit Title: Winn Guestbook v2.4.8c Stored XSS
# Date: 12/29/11
# Author: G13
# Software Link: http://code.google.com/p/winn-guestbook/, 
http://www.winn.ws
# Version: 2.4.8c
# Category: webapps (php)
# CVE: 2011-5026

##### Vulnerability #####

There is no sanitation on the input of the name variable. This allows 
malicious scripts to be added. This is a stored XSS.

##### Vendor Notification #####

12/24/11 - Vendor Notified.
12/27/11 - Vendor Acknowledged, Patch Issued.

##### Resolution #####

Upgrade to Version 2.4.8d

##### Affected Variables #####

name=[XSS]

##### Exploit #####

The script can be added right in the page, there is no filtering of 
input. This can easily be exploited if the email address used is added 
to the "approved posters" list.