cwe-79-xss

Remediates XSS vulnerabilities in Java code with context-appropriate encoding.

3|1|Updated Mar 6, 2026
One-click install
npx skills add https://github.com/DevelopersCoffee/java-cwe-security-skills --skill cwe-79-xss
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cwe-79-xss
Source: https://github.com/DevelopersCoffee/java-cwe-security-skills/tree/main/cwe-79-xss
Command: npx skills add https://github.com/DevelopersCoffee/java-cwe-security-skills --skill cwe-79-xss

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses Cross-Site Scripting (XSS) vulnerabilities in Java applications by providing deterministic code transformations to neutralize malicious input during web page generation.

Core Features & Use Cases

  • Vulnerability Identification: Detects patterns indicative of CWE-79 (Improper Neutralization of Input During Web Page Generation).
  • Deterministic Remediation: Applies secure coding practices, such as context-appropriate encoding, to fix XSS flaws.
  • Use Case: When a SAST tool flags a potential XSS vulnerability in a Java web controller, this Skill can be applied to automatically refactor the vulnerable code into a secure version, preventing script injection.

Quick Start

Apply the cwe-79-xss skill to secure the provided Java code snippet against XSS attacks.

Frequently Asked Questions about cwe-79-xss

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fix CWE-79 XSS vulnerabilities in a Java web controller?▼

To fix CWE-79 XSS vulnerabilities in Java, you apply context-appropriate encoding to neutralize malicious input during web page generation. This refactors vulnerable code into a secure version, preventing script injection during output rendering.

What is improper neutralization of input during web page generation?▼

Improper neutralization of input during web page generation is a CWE-79 XSS vulnerability where untrusted data is output without encoding. It allows attackers to inject malicious scripts into web pages viewed by other users.

How do I remediate SAST findings for cross-site scripting in Java?▼

Remediating SAST findings for cross-site scripting involves applying deterministic code transformations to secure the flagged Java snippet. This process neutralizes malicious input through secure output rendering techniques.

Does this XSS remediation approach work with Apache Commons Text and Spring HtmlUtils?▼

Yes, this XSS remediation approach works with Apache Commons Text and Spring's HtmlUtils. It requires these specific libraries to perform context-appropriate encoding for secure output rendering in Java applications.

What is the best way to prevent script injection in Java web applications?▼

The best way to prevent script injection in Java web applications is applying context-appropriate encoding to neutralize malicious input during web page generation. This deterministic remediation directly fixes CWE-79 vulnerabilities.

When should I not use automated XSS remediation for Java code?▼

Automated XSS remediation for Java code may not be suitable when context-appropriate encoding cannot be deterministically applied. Complex output rendering scenarios require manual security reviews to ensure proper neutralization of input.