Backend Developer
hardsecure-file-uploads
What are best practices for secure file uploads?
Answer
File uploads are a common attack vector.
**Best practices:**
- Validate MIME type and file signatures
- Limit size and rate
- Store outside web root and use random file names
- Virus/malware scan when needed
- Use pre-signed URLs and object storage (S3-like)
Never trust user-provided filenames or content types.
Related Topics
SecurityStorageBackend