https://www.osisecurity.com.au/inchoo-facebook-connect-extension-for-magento-parameter-xss.html

Date:
04-Apr-2017

Product:
Inchoo Facebook Connect (Magento Plugin)

Vulnerability:
Reflected cross-site scripting.

Details:
Within ./app/code/community/Inchoo/Facebook/Block/Channel.php

return '<script src="'.($this->isSecure() ? 'https://' :
'http://').'connect.facebook.net/'.($this->getData('locale') ?
$this->getData('locale') : $this->getLocale()).'/all.js"></script>';

locale isn't escaped, so it is possible to submit <script> tags which
will be executed by the browser.

Disclosure timeline:
04-Jul-2014 - Reported to Magento vendor.
07-Jul-2014 - Reported to Inchoo developer. Plug-in no longer
maintained (superseded).
07-Aug-2014 - Patch released
https://github.com/ivanweiler/Inchoo_Facebook/commit/23a5e9e63fba1f44edae3e7cb971a0c0383941c9
04-Apr-2017 - Public disclosure.

Credit:
Discovered by Patrick Webster

About OSI Security:

OSI Security is an independent network and computer security auditing
and consulting company based in Sydney, Australia. We provide internal
and external penetration testing, vulnerability auditing and wireless
site audits, vendor product assessments, secure network design,
forensics and risk mitigation services.

We can be found at http://www.osisecurity.com.au/