Joomla! Script Insertion Vulnerabilities

SECUNIA ADVISORY ID:
SA32622

VERIFY ADVISORY:
http://secunia.com/advisories/32622/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Joomla! 1.x
http://secunia.com/advisories/product/5788/

DESCRIPTION:
Some vulnerabilities have been reported in Joomla!, which can be
exploited by malicious users and potentially malicious people to
conduct script insertion attacks.

1) Unspecified input passed to the "com_content" component on article
submission is not properly sanitised before being used. This can be
exploited to insert arbitrary HTML and script code, which will be
executed in a user's browser session in context of an affected site
when the malicious data is viewed.

Successful exploitation of this vulnerability requires "Author"
privileges or higher, and that no filtering options are set.

2) Unspecified input passed to the "title" and "description" in the
"com_weblinks" component on weblink submissions is not properly
sanitised before being used. This can be exploited to insert
arbitrary HTML and script code, which will be executed in a user's
browser session in context of an affected site when the malicious
data is viewed.

Successful exploitation requires access to the weblink submission
form.

The vulnerabilities are reported in version 1.5.7 and prior.

SOLUTION:
Update to version 1.5.8..

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Johan Janssens
2) Gergo Erdosi

ORIGINAL ADVISORY:
http://developer.joomla.org/security/news/283-20081101-core-comcontent-xss-vulnerability.html
http://developer.joomla.org/security/news/284-20081102-core-comweblinks-xss-vulnerability.html