Create a file named cmd.php containing . Upload: Submit the file through the web interface.

Insecure handling of file uploads and the use of the zip:// wrapper, which can lead to Remote Code Execution (RCE) . Step 1: Enumeration

To gain a foothold, you can bypass filters by uploading a simple PHP script (like a webshell) inside the zip process.

: A tool used in bioinformatics for Blocked GNU Zip format, often indexed with tabix for genomic data.

A web application that allows users to upload files and automatically compresses them into a .zip archive.

The application might be using ZipArchive in PHP to bundle files before storing them in an /uploads/ directory. Step 2: Exploitation (Webshell Upload)

BG.zip