What are some effective methods to prevent cross-site scripting attacks?
Asked on Oct 25, 2025
Answer
To prevent cross-site scripting (XSS) attacks, it is crucial to sanitize and validate user inputs, encode outputs, and use security headers. These methods help ensure that malicious scripts cannot be executed in your web application.
Example Concept: Cross-site scripting (XSS) is a security vulnerability that allows an attacker to inject malicious scripts into web pages viewed by other users. Effective prevention methods include input validation, output encoding, and implementing security headers like Content-Security-Policy and X-XSS-Protection to mitigate the risk of script execution.
Additional Comment:
- Always validate and sanitize user inputs on both client and server sides to prevent malicious data from being processed.
- Use output encoding to ensure that data is safely rendered in the browser, preventing script execution.
- Implement security headers such as
Content-Security-Policyto restrict the sources from which scripts can be loaded.
✅ Answered with Security best practices.
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