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.
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):