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DOMPurify is an open-source library for sanitizing HTML content, which can prevent XSS attacks and supports a variety of usage scenarios.
SecurityDeveloper tools#HTML sanitization#XSS protection#Open-source library#Front-end security.C#
2 points
6.2K
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Overview

Content Details

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What is DOMPurify?

DOMPurify is a JavaScript library for sanitizing HTML code, specifically designed to prevent XSS attacks. It works by removing all malicious code while retaining safe HTML content.

How to use DOMPurify?

Simply introduce DOMPurify into your project and then call the sanitize method to process any HTML string that needs to be sanitized.

Applicable scenarios

Suitable for any web application that needs to process user-input HTML content, especially those scenarios that need to display rich text content.

Main features

XSS protection
Automatically detect and remove malicious scripts and XSS attack vectors in HTML
Safe HTML retention
Retain safe HTML tags and attributes without affecting legitimate content
Lightweight
Small size, high performance, and minimal impact on application performance
Advantages
Highly reliable XSS protection
Flexible configuration, customizable according to requirements
Supports HTML, MathML, and SVG
Active maintenance and updates
Limitations
Cannot prevent all types of injection attacks
Requires developers to understand basic XSS knowledge to use correctly
May over-sanitize some legitimate HTML structures

How to use

Install DOMPurify
Install via npm or directly introduce the script
Introduce the library
Introduce DOMPurify into your project
Sanitize HTML
Use the sanitize method to sanitize unsafe HTML

Usage examples

User comment sanitization
Sanitize the content of user-submitted comments to prevent XSS attacks
Rich text editor output
Sanitize the content of the rich text editor before displaying it

Frequently Asked Questions

Can DOMPurify prevent all XSS attacks?
How to customize the allowed HTML tags?
Will DOMPurify affect performance?

Related resources

Official GitHub repository
Source code and issue tracking for DOMPurify
npm package
npm package page for DOMPurify
XSS protection guide
OWASP XSS protection guide

Installation

Copy the following command to your Client for configuration
Note: Your key is sensitive information, do not share it with anyone.

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