From: Secunia Security Advisories (sec-advsecunia.com)
Date: Wed Sep 29 2004 - 07:52:09 CDT

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TITLE:
Wordpress Cross-Site Scripting Vulnerabilities

SECUNIA ADVISORY ID:
SA12683

VERIFY ADVISORY:
http://secunia.com/advisories/12683/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
From remote

SOFTWARE:
Wordpress 0.x
http://secunia.com/product/1659/
Wordpress 1.x
http://secunia.com/product/3978/

DESCRIPTION:
Thomas Waldegger has reported some vulnerabilities in Wordpress,
which can be exploited by malicious people to conduct cross-site
scripting attacks.

Input passed to certain parameters in various scripts isn't properly
verified before it is returned to the user. This can be exploited to
execute arbitrary HTML or script code in a user's browser session in
context of an affected site by tricking the user into visiting a
malicious website or follow a specially crafted link.

Examples:
http://[victim]/wp-login.php?redirect_to=[code]
http://[victim]/wp-login.php?mode=bookmarklet&text=[code]
http://[victim]/wp-login.php?mode=bookmarklet&popupurl=[code]
http://[victim]/wp-login.php?mode=bookmarklet&popuptitle=[code]
http://[victim]/admin-header.php?redirect=1&redirect_url=%22;[code]//
http://[victim]/bookmarklet.php?popuptitle=[code]
http://[victim]/bookmarklet.php?popupurl=[code]]
http://[victim]/bookmarklet.php?content=[code]
http://[victim]/bookmarklet.php?post_title=[code]
http://[victim]/categories.php?action=edit&cat_ID=[code]
http://[victim]/edit.php?s=[code]
http://[victim]/edit-comments.php?s=[code]
http://[victim]/edit-comments.php?mode=[code]

The vulnerabilities have been reported in version 1.2. Other versions
may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

Use another product.

PROVIDED AND/OR DISCOVERED BY:
Thomas Waldegger

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