The application might be using ZipArchive in PHP to bundle files before storing them in an /uploads/ directory. Step 2: Exploitation (Webshell Upload)
Determine if the server executes files based on their extension or if it filters specific dangerous strings.
: A tool used in bioinformatics for Blocked GNU Zip format, often indexed with tabix for genomic data. BG.zip
The server executes the command whoami , confirming Remote Code Execution. Alternative Interpretations
Access the webshell using the zip:// wrapper: http://target.com . The application might be using ZipArchive in PHP
: A ZIP file containing design assets (e.g., from remove.bg ) for web development.
To gain a foothold, you can bypass filters by uploading a simple PHP script (like a webshell) inside the zip process. The server executes the command whoami , confirming
Because the server likely has an vulnerability or allows the use of PHP wrappers, you can call the file inside the archive without extracting it manually.