HTML sanitization has long been touted as a solution to prevent malicious content injection. However, this approach faces numerous challenges. In this blog post, we'll explore the limitations of server-side HTML sanitization and discuss why client-side sanitization is the better approach.

Security Boulevard is a leading cybersecurity news and information portal, offering articles, analysis, and insights on cybersecurity threats, vulnerabilities, and best practices. From the latest trends in cyber threats to expert commentary on security technologies and compliance frameworks, Security Boulevard provides resources for security professionals, IT leaders, and business executives seeking to protect their organizations from cyber attacks and data breaches.

Security Boulevard

This post discusses the importance of client-side sanitization for untrusted HTML input and the limitations of server-side sanitization. It highlights the complexity of HTML parsing and the potential vulnerabilities introduced by relying on server-side sanitization due to variations in parsing algorithms across different environments. Developers are advised to implement client-side sanitization to ensure untrusted input is processed securely.

Sanitize Client-Side: Why Server-Side HTML Sanitization is Doomed to Fail

<p>Ideally input sanitization should be done both on Client and Server Side. User savy enough in tech can fire API directly and that will bypass client sanitization.</p>
