Fileupload Gunner Project [2025-2027]

The goal of such a tool is to identify if a web application allows the uploading of executable code. If a tester can upload a script (often called a "webshell") and execute it on the server, this is considered a . It could allow an attacker to:

The feature is considered successful if it can programmatically identify a path to a successful file upload on a target with standard blacklist protections in under 60 seconds. fileupload gunner project

[ Client / Frontend ] │ ▼ (Slices file into chunks) ┌─────────────────────────────────┐ │ Chunk Stream Router │ └────────────────┬────────────────┘ │ ▼ (Parallel HTTP/S Requests) ┌─────────────────────────────────┐ │ Ingestion Workers / Gateway │ └────────────────┬────────────────┘ │ ▼ (Temporary Storage Buffer) ┌─────────────────────────────────┐ │ Staging Area / Object Store │ └────────────────┬────────────────┘ │ ▼ (Asynchronous Assembly) ┌─────────────────────────────────┐ │ File Reconstitution Engine │ └─────────────────────────────────┘ Chunked Transfer Mechanism The goal of such a tool is to

On the server side, receiving thousands of concurrent chunks can quickly deplete system memory (RAM) if chunks are buffered entirely in memory before writing to disk. Gunner utilizes node or language-specific streams (e.g., Node.js WriteStreams or Go Channels) to pipe incoming network bytes directly to a temporary disk staging area or a cloud bucket (like AWS S3), keeping memory consumption low and flat. Asynchronous File Reconstitution [ Client / Frontend ] │ ▼ (Slices