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PHP-Nuke Cross-Site Scripting
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Secunia Advisory:
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SA8662
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Release Date:
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2003-04-25
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Popularity:
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7,491 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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Unpatched
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| Software: | PHP-Nuke 6.x
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Description:
A vulnerability has been identified in PHP-Nuke, which can be exploited by malicious people to conduct Cross-Site Scripting attacks against other users.
The vulnerability is caused due to insufficient validation of user input used in an attribute inside a tag. The characters < and > are filtered but PHP-Nuke neglects to filter out " characters. A malicious person can exploit this to execute arbitrary script code in a user's browser session by including it in either the profile, comments, or a private message.
Successful exploitation can result in disclosure of various information (eg. cookie-based authentication information) associated with the site running PHP-Nuke or inclusion of malicious content, which the user thinks is part of the real website.
An example is included in the original advisory:
<a href="http://" onclick="alert('test')">http://" onclick="alert('test')</a>
The vulnerability has been reported to affect PHP-Nuke 6.5 FINAL but other versions may also be vulnerable.
Solution:
Edit the source code so " characters are filtered.
Provided and/or discovered by:
frog-m@n
Original Advisory:
French:
http://www.frog-man.org/tutos/PHP-Nuke-html.txt
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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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