How can I prevent cross-site scripting security attacks effectively?
Asked on Sep 22, 2025
Answer
To effectively prevent cross-site scripting (XSS) attacks, you should implement a combination of input validation, output encoding, and security headers.
Example Concept: Cross-site scripting (XSS) is a security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. To mitigate XSS, use input validation to ensure only expected data is processed, output encoding to neutralize potentially harmful characters, and security headers such as Content-Security-Policy to restrict the sources of executable scripts.
Additional Comment:
- Always validate and sanitize user inputs on both client and server sides.
- Implement output encoding using libraries like OWASP's Java Encoder or similar tools for your language.
- Use the
Content-Security-Policyheader to control and limit the sources of scripts and other resources.
✅ Answered with Security best practices.
Recommended Links: