This module exploits a PHP code execution vulnerability in OpenSIS versions 4.5 to 5.2 which allows any authenticated user to execute arbitrary PHP code under the context of the web-server user. The 'ajax.php' file calls 'eval()' with user controlled data from the 'modname' parameter.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
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