Horde Application Framework v3.3.8 and lower are subject to a cross site
scripting (XSS) vulnerability.
The icon_browser.php script fails to properly sanitize user supplied
input to the 'subdir' URL parameter before printing it out as part of a
HTML formatted error message.
The following URL can be used as a proof of concept:
Prior authentication is not required for exploitation.
This vulnerability was reported to the Horde Project on 19.05.2010 and
fixed by Michael M. Slusarz in the frameworks' GIT repository within a week:
Hoping to see an upcoming fixed release (which did not take place)
I have delayed publication - admittedly too much.
Credits for this discovery:
Naumann IT Security Consulting, Berlin, Germany