The file extension image.php.jpeg is a classic example of a . Attackers use this to bypass security filters on websites that allow file uploads.
: A script (e.g., image.php ) fetches data, processes an image resource, and sends a header like Content-Type: image/jpeg to the browser. image.php.jpeg
: The "image" could contain a Web Shell , allowing an attacker to run commands on the server. Common PHP Image Functions The file extension image
In standard web development, a PHP file can act as an image. By using the PHP GD Library , developers can create, resize, or watermark images on the fly. : The "image" could contain a Web Shell
: A security filter might only check the last extension ( .jpeg ) and assume the file is a safe image. However, if the web server (like Apache) is misconfigured, it might execute the file as a PHP script because it sees the .php part.