security-review-owasp-file-upload

Reviewing file upload security flaws involves checking upload endpoints for extension, MIME type, signature, and filename validation bypasses. It also requires evaluating storage exposure, authorization checks, CSRF, rate limiting, and dangerous execution paths.

User file uploads require validation of extensions, MIME types, and file signatures to prevent parser confusion. Storage must isolate files from web-accessible paths, and document processing needs assessment for archive extraction risks and content scanning.

Preventing malicious file execution requires isolating uploaded files from web-accessible directories and validating file signatures. You must also assess dangerous post-upload processing paths, including archive extraction and document handling operations.

Yes, file upload security review covers CSRF and rate limiting on upload endpoints. It analyzes authorization checks, storage exposure, and unsafe file processing to identify vulnerabilities in code, configuration, architecture, and operational controls.

Auditing file storage exposure requires verifying that uploaded media is isolated from web-accessible paths and protected by proper access controls. The review checks authorization mechanisms and storage configuration to prevent unauthorized access.

Reviewing file upload validation without checking archive handling misses critical extraction risks. Archive processing, document handling, and content scanning represent dangerous post-upload steps that can introduce execution paths and storage vulnerabilities.