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Another example for the potential runtime-settings vulnerability comes from failing to disable PHP execution (for example by using the engine configuration directive)[10] for the directory where uploaded files are stored; enabling it can result in the execution of malicious code embedded within the uploaded files.[11][12][13] The best practice is to either locate the image directory outside of the document root available to the web server and serve it via an intermediary script or disable PHP execution for the directory which stores the uploaded files.[citation needed]