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Wysi Wiki Wyg Multiple Vulnerabilities
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Secunia Advisory:
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SA31061
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Release Date:
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2008-07-14
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Last Update:
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2008-12-05
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Popularity:
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1,470 views
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Critical:
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Moderately critical
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Impact:
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Cross Site Scripting
Exposure of system information
Exposure of sensitive information
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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: | Wysi Wiki Wyg 1.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2008-3205
CVE-2008-5322
CVE-2008-5323
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Description:
StAkeR has discovered some vulnerabilities in Wysi Wiki Wyg, which can be exploited by malicious people to conduct cross-site scripting attacks and disclose sensitive information.
1) Input passed to the "c" parameter in index.php is not properly sanitised before being used to display files. This can be exploited to display arbitrary files via directory traversal attacks.
Successful exploitation of this vulnerability requires that "magic_quotes_gpc" is disabled.
2) It is possible to view certain system information returned by the "phpinfo()" function by accessing the index.php script with the "categup" parameter set to "isset".
3) Input passed to the "s" parameter in index.php is not properly sanitised 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.
The vulnerabilities are confirmed in version 1.0. Other versions may also be affected.
Solution:
Edit the source code to ensure that input is properly sanitised. Implement access restrictions in the part of index.php that calls "phpinfo()".
Provided and/or discovered by:
StAkeR
Changelog:
2008-07-28: Added CVE reference.
2008-10-21: Updated vulnerability #1. Added vulnerabilities #2 and #3. Updated "Solution" section.
2008-12-05: Added CVE reference.
Original Advisory:
http://milw0rm.com/exploits/6042
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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