An issue in Tecrail Responsive FileManager v9.9.5 and below allows attackers to bypass the file extension check mechanism and upload a crafted PHP file, leading to arbitrary code execution.
packetstormsecurity.com/files/171720/Responsive-FileManager-9.9.5-Remote-Shell-Upload.html
github.com/trippo/ResponsiveFilemanager/blob/v9.9.5/filemanager/execute.php
github.com/trippo/ResponsiveFilemanager/blob/v9.9.6/changelog.txt
medium.com/%40_sadshade/file-extention-bypass-in-responsive-filemanager-9-5-5-leading-to-rce-authenticated-3290eddc54e7