file-access-vuln

---
name: file-access-vuln
description: >-
license: MIT
---

# 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-lfi/SKILL.md): path traversal, file read, wrapper abuse, include chains
- [Upload Insecure Files](../upload-insecure-files/SKILL.md): upload validation, storage paths, processing chains, overwrite risk, preview/share boundaries

## Recommended Flow

1. First identify whether the entry point is a path parameter, download endpoint, or upload workflow
2. Then locate whether the issue appears in accept, store, process, or serve stages
3. Small path-chain and upload-bypass samples are merged into the main topic skills; no separate payload entry is needed

## Related Categories

- [injection-checking](../injection-checking/SKILL.md)
- [business-logic-vuln](../business-logic-vuln/SKILL.md)