Ask any question about Website Security here... and get an instant response.
Post this Question & Answer:
What’s the best way to protect file uploads from malware?
Asked on Nov 13, 2025
Answer
To protect file uploads from malware, implement a combination of server-side validation, antivirus scanning, and content-type verification. This ensures that only safe and expected files are processed and stored.
Example Concept: When handling file uploads, it's crucial to validate the file type and size on the server-side, scan for malware using an antivirus solution, and verify the content type against expected MIME types. Additionally, store files outside the web root to prevent direct access.
Additional Comment:
- Always validate file extensions and MIME types to ensure they match expected formats.
- Use a reputable antivirus library or service to scan files immediately upon upload.
- Implement size limits to prevent large, potentially harmful files from being uploaded.
✅ Answered with Security best practices.
Recommended Links:
