User Input Sanitizer Tester

Test user input strings against XSS, SQL injection, and other vulnerabilities. Validate input sanitization and security measures. Essential for web application security testing.

Security Best Practices

✓ Input Validation

  • • Validate input on both client and server side
  • • Use allowlists instead of blocklists
  • • Implement proper data type validation
  • • Set maximum input length limits
  • • Validate input format with regex patterns
  • • Sanitize input before processing

✓ Output Encoding

  • • HTML encode output for web pages
  • • URL encode data in URLs
  • • Use context-appropriate encoding
  • • Implement Content Security Policy
  • • Use trusted sanitization libraries
  • • Validate and sanitize rich text content

🔒 Database Security

  • • Always use parameterized queries
  • • Implement proper access controls
  • • Use principle of least privilege
  • • Regular security audits
  • • Input validation for all queries
  • • Escape special characters properly

🛡️ General Security

  • • Implement defense in depth
  • • Regular penetration testing
  • • Keep dependencies updated
  • • Monitor for security vulnerabilities
  • • Use Web Application Firewalls
  • • Implement proper logging and monitoring

Vulnerability Types Reference

XSS (Cross-Site Scripting)

Description: Injection of malicious scripts into web pages
Impact: Session hijacking, data theft, malware distribution
Prevention: Input validation, output encoding, CSP headers

SQL Injection

Description: Injection of malicious SQL code into database queries
Impact: Data breach, data manipulation, system compromise
Prevention: Parameterized queries, input validation, least privilege

Command Injection

Description: Execution of arbitrary system commands
Impact: System compromise, data theft, service disruption
Prevention: Input validation, avoid system calls, sandboxing

LDAP Injection

Description: Manipulation of LDAP queries
Impact: Unauthorized access, information disclosure
Prevention: Input validation, LDAP escaping, parameterized queries

NoSQL Injection

Description: Injection attacks against NoSQL databases
Impact: Data manipulation, unauthorized access
Prevention: Query builders, input validation, type checking

Path Traversal

Description: Access to files outside intended directory
Impact: Unauthorized file access, information disclosure
Prevention: Path validation, sandboxing, access controls

About User Input Sanitizer Tester

A comprehensive security testing tool that evaluates user input sanitization and validates protection against common web vulnerabilities including XSS (Cross-Site Scripting), SQL injection, and other injection attacks. This tool helps developers test and improve their application's input validation and security measures.

Why use a User Input Sanitizer Tester?

Input validation vulnerabilities are among the most common and dangerous security flaws in web applications, leading to data breaches and system compromises. This tool helps developers identify weaknesses in their sanitization logic before attackers do, ensuring applications properly handle malicious input and maintain security standards.

Who is it for?

Essential for web developers building secure applications, security engineers conducting penetration testing, QA testers validating input handling, and DevSecOps teams implementing security best practices. Perfect for anyone responsible for web application security and input validation.

How to use the tool

  1. Enter test input strings that simulate potential attack vectors
  2. Select the type of vulnerability you want to test (XSS, SQL injection, etc.)
  3. Review how your application handles and sanitizes the malicious input
  4. Analyze the results to identify security weaknesses or validation gaps
  5. Implement proper sanitization based on the testing feedback and recommendations

Share This Tool

Found this tool helpful? Share it with others who might benefit from it!

💡 Help others discover useful tools! Sharing helps us keep these tools free and accessible to everyone.

Support This Project

☕ Buy Me a Coffee