React Security Posture

A JavaScript library for building user interfaces.

React Security Overview

React natively escapes string variables to prevent basic Cross-Site Scripting (XSS). However, vulnerabilities arise when using dangerouslySetInnerHTML, explicitly evaluating untrusted URLs, or exposing API keys in the client-side build.

Security Checks

XSS Protection (pass)

Data binding using curly braces {} automatically escapes values, mitigating basic XSS.

dangerouslySetInnerHTML (fail)

Bypasses React's DOM escaping. Requires a separate sanitization library like DOMPurify before rendering untrusted HTML.

API Key Exposure (fail)

All variables included in the frontend build are accessible to users. Secret keys must remain server-side.

Run a Security Audit

These technical checks are informational heuristics, not a guarantee of security or compliance. Passing a scan does not guarantee protection against zero-days or application logic flaws. Always conduct independent professional audits.