Winn Guestbook 2.4.8c - Stored XSS Vulnerability



EDB-ID: 18290 CVE: 2011-5026 OSVDB-ID: 78070
Author: G13 Published: 2011-12-29 Verified: Verified
Exploit Code:   Download Vulnerable App:    Download

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# 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.