docker pull fileupload/gunner:latest docker run -v $(pwd)/output:/output fileupload/gunner --help Let's say you have a test target: http://testapp.com/upload expecting a field named avatar . A basic command looks like this:
Introduction In the modern web development landscape, file uploads are a double-edged sword. They are essential for user interaction—allowing profile pictures, documents, and data imports—yet they represent one of the largest attack vectors for malicious actors. Enter the FileUpload Gunner Project , an emerging, powerful toolkit designed to automate, secure, and stress-test file upload mechanisms.
./gunner.py --recipe bypass_nginx.yaml --target http://target.com/upload Case Study 1: Bug Bounty Hunting A security researcher used the Gunner against a corporate "Support Ticket" system. The project's extensions-mutations payload set discovered that the server blocked .exe but allowed exe. (trailing dot). By uploading a malicious executable with a trailing dot, the researcher achieved remote code execution (RCE), earning a $5,000 bounty. Case Study 2: CI/CD Pipeline Integration A fintech startup integrated the FileUpload Gunner Project into their GitLab CI pipeline. Every pull request that modified file upload logic triggered a Gunner scan against a staging environment. The pipeline caught a regression where a developer accidentally disabled MIME type verification, preventing a critical vulnerability from reaching production.
docker pull fileupload/gunner:latest docker run -v $(pwd)/output:/output fileupload/gunner --help Let's say you have a test target: http://testapp.com/upload expecting a field named avatar . A basic command looks like this:
Introduction In the modern web development landscape, file uploads are a double-edged sword. They are essential for user interaction—allowing profile pictures, documents, and data imports—yet they represent one of the largest attack vectors for malicious actors. Enter the FileUpload Gunner Project , an emerging, powerful toolkit designed to automate, secure, and stress-test file upload mechanisms. fileupload gunner project
./gunner.py --recipe bypass_nginx.yaml --target http://target.com/upload Case Study 1: Bug Bounty Hunting A security researcher used the Gunner against a corporate "Support Ticket" system. The project's extensions-mutations payload set discovered that the server blocked .exe but allowed exe. (trailing dot). By uploading a malicious executable with a trailing dot, the researcher achieved remote code execution (RCE), earning a $5,000 bounty. Case Study 2: CI/CD Pipeline Integration A fintech startup integrated the FileUpload Gunner Project into their GitLab CI pipeline. Every pull request that modified file upload logic triggered a Gunner scan against a staging environment. The pipeline caught a regression where a developer accidentally disabled MIME type verification, preventing a critical vulnerability from reaching production. Enter the FileUpload Gunner Project , an emerging,