SQL injection (SQLi) is one of the oldest yet still most dangerous web vulnerabilities. If your site interacts with a database—and almost every WordPress site does—you need to check your website for SQL injection vulnerabilities regularly.
In this post, we’ll show you how to run a SQL injection test, what tools to use, and how to protect your website from this critical threat.
What Is SQL Injection?
SQL injection is a type of attack where malicious SQL code is inserted into input fields or URLs to manipulate the backend database.
Attackers can:
- Dump usernames and passwords
- Modify or delete data
- Bypass login pages
- Gain admin access
Sites vulnerable to SQLi are at risk of full data breaches.
How to Check Website Vulnerability: SQL Injection
1. Manual SQL Injection Test (for Advanced Users)
Try adding test strings in search boxes, login forms, or URL parameters:
' OR '1'='1
' UNION SELECT NULL--
If your site returns errors or behaves oddly, it might be vulnerable.
⚠️ Warning: Never test a site you don’t own or have permission to scan.
2. Use a SQL Injection Scanner
There are several tools to check SQL injection vulnerability safely:
- PressVuln.com – Scans your WordPress site for plugin and theme vulnerabilities (including SQLi)
- SQLMap – Powerful open-source automation tool for SQLi detection
- Acunetix (trial) – Commercial vulnerability scanner
- Nikto – Lightweight server vulnerability scanner
These tools simulate SQL penetration testing and provide detailed reports.
3. Use Online Testing Tools (Quick Checks)
If you want a fast, no-install test:
- Search for “SQL injection test online free” tools
- Ensure they’re from trusted cybersecurity sources
- Review output for warnings about exposed input fields or URLs
How to Protect Your Website from SQL Injection
- Use prepared statements with parameterized queries (
$wpdb->prepare()in WordPress) - Sanitize all user input (especially in forms, search, comments)
- Keep plugins, themes, and core updated
- Limit database permissions for your WordPress user account
✅ Scan your WordPress site with PressVuln to catch plugin-level SQL injection vulnerabilities before attackers do.
Final Thoughts
Running a SQL injection check is critical for any modern website. Don’t assume your site is safe—test it. A simple input field could be the weak link that exposes everything.
Test your site today with a SQL vulnerability scanner, and use PressVuln.com to keep WordPress secure, fast, and resilient.