Automatically scan your Flask or FastAPI application for vulnerabilities - exposed debug consoles, unrestricted API docs, SQL injection indicators, and OWASP Top 10 issues.
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What we check
Why Python Security Scanner (Flask & FastAPI)
Flask's debug mode (app.run(debug=True)) left active in production is a more severe exposure than the equivalent setting in most other frameworks: it doesn't just show a detailed error page, it activates the Werkzeug interactive debugger, which lets anyone who reaches an error page execute arbitrary Python code directly in the browser through the debugger console. The PIN meant to protect it is derived from machine-specific values that are sometimes guessable or already exposed elsewhere on the same host.
FastAPI generates interactive OpenAPI documentation at /docs and /redoc automatically, which is genuinely useful during development and easy to forget is still publicly reachable in production - it exposes the complete API surface, including internal or administrative endpoints that were never meant to be publicly discoverable, to anyone who requests the path.
Both frameworks are equally exposed to SQL injection through raw query construction - SQLAlchemy's text() with string-interpolated values, or a raw psycopg2/sqlite3 cursor call built from a format string, bypass the ORM's parameterization the same way Laravel's whereRaw or Rails' manually-interpolated where() do.
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