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Introduction to Cross-Site Scripting
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This video provides an introduction to the cross-site scripting course.
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Introduction to Web Applications
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This video covers the fundamentals of web applications.
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Cross-Site Scripting Vulnerabilities
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This video describes how cross-site scripting vulnerabilities can make an application vulnerable to attack.
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Cross-Site Scripting Exploitation
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This video describes how cross-site scripting vulnerabilities can be exploited by an attacker.
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Cross-Site Scripting Case Study
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This video describes a case study of an application containing a cross-site scripting vulnerability.
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Cross-Site Scripting Mitigations
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This video describes mitigations for cross-site scripting vulnerabilities.
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Cross-Site Scripting Demo
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This video demonstrates exploitation of a cross-site scripting vulnerability.
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Syllabus
Syllabus
Course description
Cross-site scripting (XSS) vulnerabilities are commonly underrated despite being the most common source of bug bounty payouts. This course describes the different types of XSS vulnerabilities, how to identify and mitigate them, and how they can be exploit


Meet the author
Howard Poston is a cybersecurity researcher with a background in blockchain, cryptography and malware analysis. He has a master’s degree in Cyber Operations from the Air Force Institute of Technology and two years of experience in cybersecurity research and development at Sandia National Labs. He currently works as a freelance consultant providing training and content creation for cyber and blockchain security. He can be reached by email at howard.poston@gmail.com or via his website at https://www.howardposton.com.
Associated NICE Work Roles
All Infosec training maps directly to the NICE Workforce Framework for Cybersecurity to guide you from beginner to expert across 52 Work Roles.
- Cyber Operator
- Law Enforcement / Counterintelligence Forensics Analyst
- Cyber Defense Forensics Analyst
You're in good company
We use Infosec Skills to provide continuous training to our technicians and to prepare them for various certifications. Infosec Skills allows us to create personalized training programs that focus on each of our technicians’ particular roles and see their progress as they take courses. We also, recommend it to clients to make their IT support teams better.
Caleb Yankus
This has been utilized to bridge the skills gap across our cyber team and to aid them as they prepare for their various certifications. It also has provided a nice learning foundation for our various cyber team members to utilize as we continue to find ways for cross-utilization with operations while minimizing the downtime needed to ensure everyone’s knowledge is the same.
Daniel Simpson
We use Infosec Skills to provide base level knowledge for employees. We also use the services to provide in depth learning for employees as they encounter new technologies. If an employee is is assigned to a new project, we can rely on Infosec Skills to provide a rapid concentrated learning environment. This rapid concentrated learning positions our employees for success.
Infosec Skills Teams client
Plans & pricing
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Infosec Skills Personal
- 190+ role-guided learning paths (e.g., Ethical Hacking, Threat Hunting)
- 100s of hands-on labs in cloud-hosted cyber ranges
- Custom certification practice exams (e.g., CISSP, Security+)
- Skill assessments
- Infosec peer community support
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Infosec Skills Teams
- Team administration and reporting
- Dedicated client success manager
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Single sign-on (SSO)
Easily authenticate and manage your learners by connecting to any identity provider that supports the SAML 2.0 standard.
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Integrations via API
Retrieve training performance and engagement metrics and integrate learner data into your existing LMS or HRS.
- 190+ role-guided learning paths and assessments (e.g., Incident Response)
- 100s of hands-on labs in cloud-hosted cyber ranges
- Create and assign custom learning paths
- Custom certification practice exams (e.g., CISSP, CISA)
- Optional upgrade: Guarantee team certification with live boot camps
Unlock 7 days of free training
- 1,400+ hands-on courses and labs
- Certification practice exams
- Skill assessments
Award-winning training that you can trust




