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paBox Cross Site Scripting
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SUMMARY
" <http://www.phparena.net/pabox.php> paBox is a PHP/mySQL shoutbox script
(Also known as a tagboard.) You can add it to your site and visitors can
post new messages, it is similar to a guestbook."
paBox is vulnerable to a cross site scripting vulnerability due lack of
validation of user provided input.
DETAILS
Vulnerable Systems:
* paBox version 2.0
The parameter in the form that lets you select which 'smilie' to use as an
icon for your post is prone to a script injection attack.
The specific parameter is:
<INPUT type=radio CHECKED value="wink.gif" name=posticon>
Where wink.gif become the value of the SRC attribute of the <img> tag when
your post is submitted.
By altering the value of wink.gif, or adding another instance of this
parameter, its possible to inject malicious code into the value of the
parameter, for example:
<INPUT type=radio CHECKED
value=""><script>document.write(document.cookie);</script>"
name=posticon>click me
ADDITIONAL INFORMATION
The information has been provided by <mailto:Sean@sage-web.com> Rift.
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