----------------------------------------------------------------------


Get a tax break on purchases of Secunia Solutions!

If you are a U.S. company, you may be qualified for a tax break for your software purchases. Learn more at:
http://secunia.com/products/corporate/vim/section_179/


----------------------------------------------------------------------

TITLE:
Nucleus CMS "user" Script Insertion Vulnerability

SECUNIA ADVISORY ID:
SA43727

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43727/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43727

RELEASE DATE:
2011-03-15

DISCUSS ADVISORY:
http://secunia.com/advisories/43727/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43727/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43727

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been discovered in Nucleus CMS, which can be
exploited by malicious people to conduct script insertion attacks.

Input passed to the "user" parameter in index.php (when "action" is
set to "addcomment") is not properly sanitised before being used in
the "parse_user()" function in COMMENTACTIONS.PHP. This can be
exploited to insert HTML and script code, which will be executed in a
user's browser session in context of an affected site if malicious
data is viewed.

The vulnerability is confirmed in version 3.63. Prior versions may
also be affected.

SOLUTION:
Update to version 3.64.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Katsumi and John Leitch of AutoSec Tools.

ORIGINAL ADVISORY:
Nuclesu CMS 3.64 Announcement:
http://nucleuscms.org/index.php?itemid=3060

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------