From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Feb 26 2007 - 11:02:05 CST

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TITLE:
Opera Charset Inheritance Cross-Site Scripting Vulnerability

SECUNIA ADVISORY ID:
SA24312

VERIFY ADVISORY:
http://secunia.com/advisories/24312/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
From remote

SOFTWARE:
Opera 9.x
http://secunia.com/product/10615/

DESCRIPTION:
Stefan Esser has discovered a vulnerability in Opera, which can be
exploited by malicious people to conduct cross-site scripting
attacks.

The vulnerability exist because pages that do not specify a charset
inherit the charset of the parent page. This can be exploited to
execute arbitrary HTML and script code in a user's browser session in
context of certain sites that are included e.g. via iframes in a
malicious page that uses UTF-7 as charset.

Successful exploitation requires that the user is tricked into
visiting a malicious web site.

The vulnerability is confirmed in version 9.10. Other versions may
also be affected.

SOLUTION:
Do not browse untrusted sites.

PROVIDED AND/OR DISCOVERED BY:
Stefan Esser

ORIGINAL ADVISORY:
http://www.hardened-php.net/advisory_032007.142.html

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