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TITLE:
TYPO3 Cumulus Tagcloud Extension "tagcloud" Cross Site Scripting
Vulnerability

SECUNIA ADVISORY ID:
SA39704

VERIFY ADVISORY:
http://secunia.com/advisories/39704/

DESCRIPTION:
MustLive has discovered a vulnerability in the Cumulus Tagcloud
extension for TYPO3, which can be exploited by malicious people to
conduct cross-site scripting attacks.

Input passed via the "tagcloud" parameter to
typo3conf/ext/t3m_cumulus_tagcloud/pi1/tagcloud.swf (when "mode" is
set to "tags") is not properly sanitised before being returned to the
user. This can be exploited to execute arbitrary HTML and script code
in a user's browser session in context of an affected site.

The vulnerability is confirmed in version 3.1.1. Other versions may
also be affected.

SOLUTION:
Filter malicious characters and character sequences using a proxy.

PROVIDED AND/OR DISCOVERED BY:
MustLive

ORIGINAL ADVISORY:
http://websecurity.com.ua/4181/

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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.

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