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MyBB private.php Cross-Site Request Forgery and Cross-Site Scripting
Secunia Advisory: SA23934
Release Date: 2007-01-25
Last Update: 2007-03-29
Popularity: 9,414 views

Critical:
Less critical
Impact: Cross Site Scripting
Where: From remote
Solution Status: Partial Fix

Software:MyBB (formerly MyBulletinBoard) 1.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Some vulnerabilities have been discovered in MyBB, which can be exploited by malicious people to conduct cross-site request forgery attacks and cross-site scripting attacks.

1) The application allows users to send messages via HTTP requests without performing any validity checks to verify the request. This can be exploited to send messages to arbitrary users by e.g. tricking a target user into visiting a malicious website.

2) Input passed to the form field "Subject" in private.php is not properly sanitised before it is returned to the user when previewing private messages. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

Successful exploitation of the vulnerabilities requires that the target user is logged in.

The vulnerabilities are confirmed in version 1.2.2. Other versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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