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Description
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Sammy Forgit has discovered a vulnerability in the FCChat Widget plugin for WordPress, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to the wp-content/plugins/fcchat/html/Upload.php script improperly validating the extension of an uploaded file. This can be exploited to execute arbitrary PHP code by uploading a PHP file with e.g. an appended ".gif" file extension.
Successful exploitation requires that Apache is not configured to handle the mime-type for media files with e.g. a ".gif" extension (configured to handle by default).
The vulnerability is confirmed in version 2.2.13.1. Other versions may also be affected.
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Vulnerable Products
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Vulnerable Software:
WordPress FCChat Widget Plugin 2.x
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Solution
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Update to version 2.2.13.7.
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CVE
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CVE-2012-3578
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References
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FCChat Widget:
http://plugins.trac.wordpress.org/changeset/562756/fcchat
OpenSysCom:
http://www.opensyscom.fr/Actualites/wordpress-plugins-fcchat-widget-shell-upload-vulnerability.html
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Vulnerability Manager Detection
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No
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IPS Protection
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