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WordPress 3.0.1 - Cross Site Scripting Issue



WordPress 3.0.1 - Cross Site Scripting Issue
WordPress 3.0.1 - Cross Site Scripting Issue



[MajorSecurity SA-080]WordPress 3.0.1 - Cross Site Scripting Issue=0D
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Details=0D
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Product: WordPress 3.0.1=0D
Security-Risk: low=0D
Remote-Exploit: yes=0D
Vendor-URL: http://www.wordpress.org/=0D 
Advisory-Status: published=0D
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Credits=0D
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Discovered by: David Vieira-Kurz of MajorSecurity=0D
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Affected Products:=0D
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WordPress 3.0.1=0D
Prior versions may also be vulnerable=0D
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Description=0D
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"WordPress is web software you can use to create a beautiful website or blog." - from wordpress.org=0D
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More Details=0D
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I have discovered some vulnerabilities in WordPress 3.0.1, which can be exploited by malicious people to conduct reflected cross-site scripting attacks. Input passed directly to the "checked[0]" parameter in "wp-admin/plugins.php" when the "action" parameter is set to "delete-selected" is not properly sanitised before being stored and 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.=0D
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Solution=0D
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Web applications should never trust on user generated input and therefore sanatize all input. Edit the source code to ensure that input is properly sanitised.=0D
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MajorSecurity=0D
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MajorSecurity is a German sourcecode audit and penetration testing company which focuses on (web-)application security. We offer professional source code audit, penetrationstest and pci dss compliance tests. Visit us at http://www.majorsecurity.net/source-code-audit.php=0D 
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Use of terms=0D
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Unaltered electronic reproduction of this advisory is permitted. For all other reproduction or publication, in printing or otherwise, contact us for permission. Use of the advisory constitutes acceptance for use in an "as is" condition. All warranties are excluded. In no event shall MajorSecurity be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if MajorSecurity has been advised of the possibility of such damages.


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