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MediaWiki AJAX UTF-7 Cross-Site Scripting
Secunia Advisory: SA24211
Release Date: 2007-02-21
Last Update: 2007-03-02
Popularity: 9,711 views

Critical:
Less critical
Impact: Cross Site Scripting
Where: From remote
Solution Status: Vendor Patch

Software:MediaWiki 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:
Moshe BA has reported a vulnerability in MediaWiki, which can be exploited by malicious people to conduct cross-site scripting attacks.

Input passed to the "rs" parameter in index.php (when "action" is set to "ajax") is not properly sanitised from UTF-7 data 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.

Successful exploitation requires that $wgUseAjax is set to true (not default setting) and that the target user uses Internet Explorer with encoding auto-detection enabled.

The vulnerability is related to:
SA23647

The vulnerability is reported in the 1.6.x branch before 1.6.10, the 1.7.x branch before 1.7.3, the 1.8.x branch before 1.8.4, and the 1.9.x branch before 1.9.3.

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



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