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Category:   Application (Forum/Board/Portal)  >   WordPress Vendors:   wordpress.org
WordPress Input Validation Flaw in 'Content' Parameter Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1024928
SecurityTracker URL:  http://securitytracker.com/id/1024928
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Updated:  Dec 30 2010
Original Entry Date:  Dec 29 2010
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 3.0.3
Description:   A vulnerability was reported in WordPress. A remote authenticated user can conduct cross-site scripting attacks.

A remote authenticated user with editor privileges can submit a specially crafted 'Content' parameter value. When the post is viewed by a target user, arbitrary scripting code will be executed by the target user's browser. The code will originate from the site running the WordPress software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

The original advisory is available at:

http://www.exploit-db.com/exploits/15858/

Saif reported this vulnerability.

[Editor's note: The vendor reported that the flaw resides in the 'wp-includes/kses.php' XSS sanitation library. Other attack vectors may exist. The vendor credits Mauro Gentile and Jon Cave (duck_) with first reporting this vulnerability.]

Impact:   A remote authenticated user with Editor privileges can access the target user's cookies (including authentication cookies), if any, associated with the site running the WordPress software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has issued a fix (3.0.4).

The vendor's advisory is available at:

http://wordpress.org/news/2010/12/3-0-4-update/

Vendor URL:  www.wordpress.org/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents



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