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TITLE:
vBulletin Private Message Subject Script Insertion

SECUNIA ADVISORY ID:
SA31552

VERIFY ADVISORY:
http://secunia.com/advisories/31552/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
vBulletin 3.x
http://secunia.com/product/3212/

DESCRIPTION:
Federico Muttis has reported a vulnerability in vBulletin, which can
be exploited by malicious users to conduct script insertion attacks.

Input passed as the subject of a private message is not properly
sanitised before being stored. This can be exploited to insert
arbitrary HTML and script code, which is executed in a user's browser
session in context of an affected site when the malicious data is
viewed.

Successful exploitation requires valid user credentials and that
"Show New Private Message Notification Pop-Up" is enabled.

The vulnerability is reported in versions 3.7.2 PL1 and 3.6.10 PL3.
Prior versions may also be affected.

SOLUTION:
Update to version 3.7.2 PL2 or 3.6.10 PL4.

PROVIDED AND/OR DISCOVERED BY:
Federico Muttis, Core Security Technologies

ORIGINAL ADVISORY:
vBulletin:
http://www.vbulletin.com/forum/showthread.php?t=282133

Core Security Technologies:
http://www.coresecurity.com/content/vbulletin-cross-site-scripting-vulnerability

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About:
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