Java Html Sanitizer

Overview

The OWASP Java HTML Sanitizer is a powerful tool designed to protect web applications from security vulnerabilities such as Cross-Site Scripting (XSS). With its simple configuration and robust security features, it enables developers to safely incorporate third-party HTML content into their applications. This sanitizer is built with best security practices in mind, featuring an extensive test suite and undergoing rigorous security reviews.

Getting started with the Java HTML Sanitizer is straightforward, thanks to comprehensive documentation that caters to both Maven users and those who prefer a more manual setup. The tool is designed to ensure that the output is secure while maintaining compatibility with various HTML parsers, making it a solid choice for modern web application development.

Features

• Easy Configuration: The sanitizer is designed for quick setup, allowing developers to get started with minimal hassle.
• Support for Prepackaged Policies: Users can utilize predefined policies to immediately enforce security standards without having to create custom rules.
• Custom Policymaking: For those needing tailored protection, it's easy to craft custom policies that can modify HTML elements as required.
• Attribute Whitelisting: Elements like "a", "img", and "input" can be explicitly allowed through the filter, providing flexibility in what content is permitted.
• Preprocessing Capabilities: Preprocessors enable significant structural changes to the HTML before any policies are applied, enhancing the versatility of the sanitizer.
• Telemetry Notifications: The sanitizer can track and report policy violations, enabling developers to monitor potential security breaches effectively.
• JSR 305 Dependency: The sanitizer's design includes a compile-only dependency for annotations, keeping the core lightweight and efficient.
• Active Community Contribution: The project encourages user contributions, allowing for ongoing improvements and updates under the Apache 2.0 License.