Unrestricted file upload vulnerability in magmi/web/magmi.php in the MAGMI (aka Magento Mass Importer) plugin 0.7.17a and earlier for Magento Community Edition (CE) allows remote authenticated users to execute arbitrary code by uploading a ZIP file that contains a PHP file, then accessing the PHP file via a direct request to it in magmi/plugins/.
Improper Control of Generation of Code The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.