We have a Drupal application developed for sharing files. We are allowing zip files to be uploaded by logged in departmental user. We are using Drupal private file system (outside webroot). We are ...
I am filtering all images that attached to any content of my blog: Check for file extension. Check content type using $finfo = finfo_open(FILEINFO_MIME_TYPE); I also save the image temporary on my ...
I want my users to be able to upload a photo. Currently I am not checking the uploaded photo for problems of any kind, although I do limit the size to 32k. Is there any way for me to check uploaded ...
There is image upload function in web application. After image is uploaded, it's resized using functions from PHP GD like imagecopyresampled and others. Before invocation of PHP GD's functions there ...
To defend versus Remote File Inclusion where attackers try to abuse image files, I usually recommend to never use include to include image files into PHP code. Sometimes though, the avoidance of ...
Recently I have worked on a number of applications that need to process user uploaded images steps have been taken to validate the extension and the mime type. But what else can be done to ensure ...