4 Best Ways to Prevent Code Injection in JavaScript and Node.js

4 Best Ways to Prevent Code Injection in JavaScript and Node.js

4 Best Ways to Prevent Code Injection in JavaScript and Node.js: Avoid eval(), setTimeout(), and setInterval(); Avoid new Function(); Avoid code serialization in JavaScript; Use a Node.js security linter. Learn How to Prevent Code Injection in JavaScript and Node.js

Writing secure code in a way that stops code injection could look like an usual task, but there are numerous pitfalls along the way. e.g, the fact that a developer follows best security practices does not mean that others developers are doing the exact. You are most probably using open source packages in your applications. How do you be aware if those were developed securely? What if insecure code like eval() exists there? Let’s discuss it in more detail.

What is code injection?

Code injection is a special form of broad injection attacks, in which an attacker can transfer JavaScript or Node.js code that is clarified by the browser or the Node.js runtime.The security exposure manifests when the interpreter is not able to make a difference between the trusted code the developer intended, and the injected code that is provided by attacker as an input.

How to stop code injection?

As a key secure coding way, do not let any dynamic code implementation in the application.This means we ought to avoid language constructs like eval and code strings given to setTimeout() or the Function constructor.Secondly, keep away from serialization which might be unsafe to injection attacks that execute code in the serialization process. Lastly, do dependency scanning to make sure that your application isn’t vulnerable to this attack due to third-party open source components. Moreover, if we use a static code analysis tool like Google’s Closure Compiler we can search these potential code injection security vulnerabilities in our or our colleagues’ code.

  • Avoid eval(), setTimeout(), and setInterval()
  • Avoid new Function()
  • Avoid code serialization in JavaScript
  • Use a Node.js security linter

nodejs react javascript web-development node

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

How native is React Native? | React Native vs Native App Development

Article covers: How native is react native?, React Native vs (Ionic, Cordova), Similarities and difference between React Native and Native App Development.

Top NodeJS Web Development Company India & USA – ByteCipher P. Ltd

Seeking for the top NodeJS development company in USA & India? Our expert and skilled NodeJs developers are dedicated to offer you a full-spectrum of nodejs app development services.

Node JS Development Company | Hire Node.js Developers

Looking to hire Node js developers? One of the top Node js development companies in India & USA offers cost-effective Node js web development services.

Hire Dedicated JavaScript Developers -Hire JavaScript Developers

Hire dedicated JavaScript Developers who are proficient in AngularJS, ReactJS, NodeJS, & VueJS frameworks. Get flexible hiring models as per your business requirements.

Hire Top Node JS Developers | Best Node.js Development Company India

Hire dedicated Node JS developers & programmers in India for custom full-stack NodeJS web development projects on hourly/full-time basis. Strict NDA, 16+ years exp & 2500+ clients|450+ Experts