html-injection-testing

Topics in the source

• HTML Injection Testing
• Purpose
• Prerequisites
• Required Tools
• Required Knowledge
• Outputs and Deliverables
• Core Workflow
• Phase 1: Understanding HTML Injection

Identify and exploit HTML injection vulnerabilities that allow attackers to inject malicious HTML content into web applications. This vulnerability enables attackers to modify page appearance, create phishing pages, and steal user credentials through injected forms. Web browser with developer tools Burp Suite or OWASP ZAP Tamper Data or similar proxy cURL for testing payloads HTML fundamentals HTTP request/response structure Web application input handling Difference between HTML injection and XSS 1. Vulnerability Report - Identified injection points 2. Exploitation Proof - Demonstrated content manipulation 3. Impact Assessment - Potential phishing and defacement risks 4. Remediation Guidance - Input validation recommendations HTML injection occurs when user input is reflected in web pages without proper sanitization: Key differences from XSS: HTML injection: Only HTML tags are rendered XSS: JavaScript code is executed HTML injection is often stepping stone to XSS Attack goals: Modify website appearance (defacement) Create fake login forms (phishing) Inject malicious links Display misleading content Map application for potential injection surfaces: Common vulnerable parameters: Test

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