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TITLE:
Movable Type Security Bypass and Cross-Site Scripting Vulnerabilities

SECUNIA ADVISORY ID:
SA35534

VERIFY ADVISORY:
http://secunia.com/advisories/35534/

DESCRIPTION:
Some vulnerabilities have been reported in Movable Type, which can be
exploited by malicious people to bypass certain security restrictions
and to conduct cross-site scripting attacks.

1) Unspecified input to mt-wizard.cgi 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.

2) An unspecified error in mt-wizard.cgi can be exploited to bypass
certain security restrictions.

The vulnerabilities are reported in versions prior to 4.26.

SOLUTION:
Update to version 4.26 or later.

PROVIDED AND/OR DISCOVERED BY:
Reported via JVN.

ORIGINAL ADVISORY:
MovableType
http://www.movabletype.org/documentation/appendices/release-notes/426.html

JVN:
http://jvn.jp/jp/JVN86472161/index.html
http://jvn.jp/jp/JVN08369659/index.html

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