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File Access Router
This is the routing entry point for filesystem paths, download endpoints, upload pipelines, and file preview handling.
When to Use
- Parameters, filenames, download endpoints, or import flows influence file paths
- The target supports upload, preview, transcoding, extraction, sharing, download, or proxied file access
- You need to decide whether this is path traversal/LFI or an upload-validation/processing-chain issue
Skill Map
- Path Traversal LFI: path traversal, file read, wrapper abuse, include chains
- Upload Insecure Files: upload validation, storage paths, processing chains, overwrite risk, preview/share boundaries
Recommended Flow
- First identify whether the entry point is a path parameter, download endpoint, or upload workflow
- Then locate whether the issue appears in accept, store, process, or serve stages
- Small path-chain and upload-bypass samples are merged into the main topic skills; no separate payload entry is needed
