XSS and JavaScript Remote Code Executions

This course explores cross-site scripting (XSS) in JavaScript.

7 videos  //  94 minutes of training

Course description

XSS attacks are arguably the main threat against JavaScript web applications. In this course, we will cover them in detail and leave no stone unturned as we check everything about reflected, stored, DOM-based XSS. We will extensively cover CSP and trusted types.

Course syllabus

XSS OverviewDuration: 11:57

What is cross-site scripting and what is its impact?

Reflected XSSDuration: 15:53

Reflected XSS happens when the XSS payload is sent to a server and sent back to the client.

Stored XSSDuration: 7:04

Stored XSS happens when the server keeps the XSS payload in database or on the file system.

DOM-Based XSSDuration: 13:15

DOM-based XSS happens without any server interactions.

Code Execution: Eval and Other Vulnerable SinksDuration: 14:36

There are multiple ways (beyond XSS) to dynamically inject code in a running JavaScript applications.

Content Security Policy and XSSDuration: 15:05

Content security policies are a complex yet powerful tool to prevent browsers from loading data insecurely.

Trusted TypesDuration: 16:03

Trusted types is the latest iteration in the fight against XSS.

Meet the author

Vladimir de Turckheim

LinkedIn

Vladimir works as a software engineer at Sqreen where he builds a tool to secure web applications. Previously, he was a professional security auditor and a web developer in agencies. He is one of the most active members of the Node.js Security Working Group where he handles the security of Node.js and its ecosystem.

Vladimir is an official Node.js collaborator and his contributions mostly focus in the domain of security and monitoring. He also often gives talks and training to software engineers to teach them about application security.

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