Joomla! component kubikrubik simple image gallery extended (sige) 3.2.3 crosssite scripting Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2018-02-16 | Type : webapps | Platform : php
This exploit / vulnerability Joomla! component kubikrubik simple image gallery extended (sige) 3.2.3 crosssite scripting is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: Joomla! Component SIGE version <= 3.2.3 Cross-site Scripting
# Date: 15-02-2018
# Software Link: https://downloads.kubik-rubik.de/joomla-extensions/plg_sige_v3.2.3.zip
# Exploit Author: Alwin Peppels
# Website: www.onvio.nl
# CVE: CVE-2017-16356
# Category: webapps

1. Description
Kubik-Rubik Simple Image Gallery Extended (SIGE) contains an XSS in the
'print.php' file.
Insufficient sanitization of the 'caption' URL parameter allows injection
of Javascript into the page.
In versions <= 3.2.0 the 'name' and 'img' parameters are vulnerable as well.
Google dork: inurl:plugin_sige/print.php

The version of the SIGE plugin can be determined with this file:
[JOOMLA]/plugins/content/sige/sige.xml

2. Proof of Concept


[JOOMLA]/plugins/content/sige/plugin_sige/print.php?img=x&caption=<img%20src=x%20onerror=alert(%27XSS%27)>

3. Solution:

Update to version 3.3.0
https://downloads.kubik-rubik.de/joomla-extensions/plg_sige_v3.3.0.zip