PHPKIT WCMS 1.6.5 Cross Site Scripting

`[MajorSecurity SA-079]PHPKIT WCMS - Multiple stored Cross Site Scripting  
Issues  
  
Details  
=============  
Product: PHPKIT WCMS  
Security-Risk: low  
Remote-Exploit: yes  
Vendor-URL: http://www.phpkit.com/  
Advisory-Status: published  
  
Credits  
=============  
Discovered by: David Vieira-Kurz of MajorSecurity  
  
Original Advisory  
=============  
http://www.majorsecurity.net/phpkit-wcms-xss-stored.php  
  
Affected Products:  
=============  
PHPKIT WCMS 1.6.5  
Prior versions may also be vulnerable  
  
Description  
=============  
"PHPKIT WCMS is an Content Management System."  
  
More Details  
=============  
We at MajorSecurity have discovered some vulnerabilities in PHPKIT WCMS  
1.6.5, which can be exploited by malicious people to conduct persistent  
cross-site scripting attacks. Input passed directly to the  
"gbook_welcome" parameter in  
"/de/pk/include.php?path=config&mode=guestbook" and to the  
"rss_page_text" parameter in  
"/de/pk/include.php?path=config&mode=rssfeed" is not properly sanitised  
before being stored and returned to the user. This can be exploited to  
execute arbitrary HTML and script code in a user's browser session in  
context of an affected site.  
  
Solution  
=============  
Web applications should never trust on user generated input and  
therefore sanatize all input. Edit the source code to ensure that input  
is properly sanitised.  
  
MajorSecurity  
================  
MajorSecurity is a German sourcecode audit and penetration test company  
which focuses on (web-)application security. We offer professional  
source code audit, penetrationstest and pci dss compliance tests. Visit  
us at http://www.majorsecurity.net/source-code-audit.php  
`