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CKForms Component for Joomla! contains a flaw that may allow a remote attacker to disclose potentially sensitive information. The issue is due to the 'index.php' script not properly sanitizing user input, specifically directory traversal style attacks (e.g., ../../)and URL-encoded NULL bytes, supplied to the 'controller' parameter (when "option" is set to "com_ckforms"). This may allow an attacker to include a file from the targeted host that contains arbitrary commands or code that will be executed by the vulnerable script. Such attacks are limited due to the script only calling files already on the target host. In addition, this flaw can potentially be used to disclose the contents of any file on the system accessible by the web server.
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