Data Sanitizer
Clean and validate input data to prevent security vulnerabilities. Remove potentially dangerous content and ensure data safety.
Understanding Data Sanitization
Data sanitization is crucial for web security. It helps prevent:
- XSS Attacks: Cross-site scripting through malicious scripts
- SQL Injection: Database attacks through malformed input
- Code Injection: Execution of unauthorized code
- Data Corruption: Invalid or malformed data entry
Sanitization Methods
HTML Sanitization
Removes potentially dangerous HTML tags and attributes while preserving safe content.
URL Sanitization
Ensures URLs are properly formatted and free from malicious components.
Text Cleaning
Removes unwanted characters and normalizes text format.
Special Characters
Handles special characters and encoding to prevent injection attacks.
Best Practices
Input Validation
Always validate input data before processing. Define clear rules for acceptable input.
Output Encoding
Properly encode data when displaying it to prevent XSS attacks.
Context Awareness
Use appropriate sanitization methods based on the data's context and use case.
Quick Tips
- • Always validate user input
- • Use appropriate encoding
- • Consider the data context
- • Maintain whitelist approach
- • Test with malicious input
- • Document sanitization rules