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  4. Defending TypeScript Applications Against Cross-Site Scripting

Defending TypeScript Applications Against Cross-Site Scripting

Cross-site scripting is a vulnerability that allows attackers to modify web content a web application presents to other users. Cross-site scripting allows an attacker to present malicious content to legitimate users within the context of a vulnerable application. This vulnerability type is caused by not encoding user-supplied data correctly when including the user-supplied data in web application output.

This Skill Lab provides a virtual environment that contains a vulnerable application with its complete source code for training developers to identify and remediate Cross-Site Scripting vulnerabilities.

Course Overview

Overall Proficiency Level
3 - Advanced
Course Catalog Number
LAB 351
Training Purpose
Skill Development
Specific Audience
All
Delivery Method
Online, Self-Paced
  • Online, Self-Paced

Learning Objectives

In this lab, the learner will receive hands-on experience testing for a Cross-Site Scripting vulnerability and implementing an appropriate mitigation. The typical solution is to encode user-supplied input correctly for the context in which the user-supplied data will appear when included in the web application output.

Framework Connections

The materials within this course focus on the NICE Framework Task, Knowledge, and Skill statements identified within the indicated NICE Framework component(s):

Feedback

If you would like to provide feedback on this course, please e-mail the NICCS team at NICCS@mail.cisa.dhs.gov. Please keep in mind that NICCS does not own this course or accept payment for course entry. If you have questions related to the details of this course, such as cost, prerequisites, how to register, etc., please contact the course training provider directly. You can find course training provider contact information by following the link that says “Visit course page for more information...” on this page.

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