How to prevent XSS attacks in React

This article introduces the relevant knowledge of "how to prevent XSS attacks in React". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Cross-site scripting (XSS) attacks are attacks that inject malicious code into a web page and then execute it. This is one of the most common forms of network attacks that front-end Web developers must deal with, so it is important to understand how attacks work and how to prevent them.

In this article, we'll look at several code examples written in React so that you can also protect your site and users.

Successful XSS attack in sample 1:React

For all of our examples, we will implement the same basic functionality. We will have a search box on the page where users can enter text. Clicking the "Go" button will simulate running the search, and then some confirmation text will be displayed on the screen and repeat the terms of their search to the user. This is the standard behavior of any site that allows you to search.

It's simple, isn't it? What will go wrong?

Well, what if we type some HTML in the search box? Let's try the following code snippet: