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Category:   Application (Forum/Board/Portal)  >   Nucleus Vendors:   nucleuscms.org
Nucleus Input Validation Holes in 'lib/ADMIN.php' and 'lib/SKIN.php' Permit Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1017220
SecurityTracker URL:  http://securitytracker.com/id/1017220
CVE Reference:   CVE-2006-6920   (Links to External Site)
Updated:  Jun 2 2008
Original Entry Date:  Nov 14 2006
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  
Version(s): 3.23 and prior versions
Description:   A vulnerability was reported in Nucleus. A remote user can conduct cross-site scripting attacks.

The 'Create a Member Account' function does not properly filter HTML code from user-supplied input before displaying the input. A remote user can submit specially crafted input that, when viewed by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Nucleus 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 'lib/ADMIN.php' and 'lib/SKIN.php' scripts are affected.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Nucleus 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 fixed version (3.24).

The vendor's advisory is available at:

http://www.nucleuscms.org/item/3044

Vendor URL:  www.nucleuscms.org/item/3044 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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