Security
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You're reading from  JavaScript Security

Product typeBook
Published inNov 2014
Reading LevelIntermediate
Publisher
ISBN-139781783988006
Edition1st Edition
Languages
JavaScript
Tools
Node.js
Concepts
Application Security
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Author (1)
Eugene Liang
Eugene Liang
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Eugene Liang

Y.E Liang is a researcher, author, web developer, and business developer. He has experience in both frontend and backend development, particularly in engineering, user experience using JavaScript/CSS/HTML, and performing social network analysis. He has authored multiple books and research papers.
Read more about Eugene Liang

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Examples of cross-site scripting

In the previous chapter, we built a Node.js/Express.js-based backend and attempted successfully to inject a simple JavaScript function, alert(), into the app. So, you may be thinking, does such a security flaw occur in a backend based on JavaScript?

The answer is no. The error can occur in systems based on different programming/scripting languages. In this section, we'll start with a RESTful backend based on Python and demonstrate how we can perform different types of cross-site scripting.

A simple to-do app using Tornado/Python

The app here is similar to what we built in Chapter 2, Secure Ajax RESTful APIs; we are going to build a simple RESTful to-do app, but now the difference is that the backend is based on Python/Tornado.

Your code will look like the following by the end of this section:

Code organization by the end of this chapter

Therefore, you might want to start by creating the required folders and files before moving to the next subsection. The folders...

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JavaScript Security
Published in: Nov 2014Publisher: ISBN-13: 9781783988006
© 2014 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Eugene Liang

Y.E Liang is a researcher, author, web developer, and business developer. He has experience in both frontend and backend development, particularly in engineering, user experience using JavaScript/CSS/HTML, and performing social network analysis. He has authored multiple books and research papers.
Read more about Eugene Liang

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