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MediaWiki AJAX UTF-7 Cross-Site Scripting
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Secunia Advisory:
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SA24211
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Release Date:
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2007-02-21
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Last Update:
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2007-03-02
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Popularity:
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8,000 views
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Critical:
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Less critical
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Impact:
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Cross Site Scripting
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | MediaWiki 1.x
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| | CVE reference: | CVE-2007-1054
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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.
Solution:
Update to version 1.6.10, 1.7.3, 1.8.4, or 1.9.3.
Provided and/or discovered by:
Moshe BA, BugSec LTD.
Changelog:
2007-03-02: Added CVE reference.
Original Advisory:
BugSec LTD.:
http://www.bugsec.com/articles.php?Security=24
MediaWiki:
http://svn.wikimedia.org/viewvc/media...3/phase3/RELEASE-NOTES?revision=20016
Other References:
SA23647:
http://secunia.com/advisories/23647/
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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