How to Do a Complete WordPress Security Audit in 2023 (Step-by-Step Checklist)

Hi there, WordPress site owner! Let me ask you a question:

When was the last time you thoroughly checked your site for hidden security vulnerabilities?

If it‘s been a while (or never), don‘t worry – you‘re definitely not alone. But here‘s the thing:

WordPress security is more important than ever in 2023. Cybercrime is at an all-time high, with hackers relentlessly probing sites for weaknesses to exploit. Just consider these alarming statistics:

• There is a hacking attempt every 39 seconds (University of Maryland)
• 64% of companies worldwide have experienced at least one cyberattack (Accenture)
• The average cost of a data breach is $4.35 million (IBM)
• 60% of small businesses go out of business within 6 months of a cyberattack (SCORE)

Scary, right? But here‘s the good news:

By conducting a comprehensive WordPress security audit, you can find and fix vulnerabilities before hackers do. Think of it like getting a annual checkup for your website‘s health.

In this step-by-step guide, I‘ll walk you through exactly how to perform a complete DIY audit of your WordPress security. I‘ll share:

• What a WordPress security audit involves (and why it‘s so critical)
• How to manually review your core, themes, plugins, users and more
• Best security plugins to automate key parts of the audit process
• Actionable tips to harden your site based on the audit results
• Key security practices to maintain year-round

As a WordPress security expert who has secured hundreds of client sites, my goal is to empower you with the knowledge and tools to keep your site safe from emerging threats.

So grab a coffee, roll up your sleeves, and let‘s dive in!

What Is a WordPress Security Audit?

A WordPress security audit is a thorough evaluation of your entire website to identify any holes that hackers could use to break in and wreak havoc.

Think of your site like a house. You (hopefully) lock your front door, but what about that window you sometimes leave cracked open? Or the spare key under the flower pot?

Hackers are constantly scanning sites for these "unlocked windows." It could be an outdated plugin, a weak password, or a misconfigured file permission. Finding and closing these gaps is what a security audit is all about.

An effective audit requires systematically combing through your WordPress core files, themes, plugins, users, hosting setup, and other key components. The goal is to leave no stone unturned in uncovering potential exploits.

Why is a WordPress Security Audit So Important?

You might be wondering: Is an audit really worth the effort? Isn‘t my WordPress site already secure out of the box?

While WordPress core is quite secure, the expanding ecosystem of themes and plugins introduces endless new variables. Consider these findings:

• 98% of WordPress vulnerabilities are related to plugins and themes (WP White Security)
• 55% of known WordPress vulnerabilities come from plugins (Patchstack)
• Websites that utilize 20+ plugins are 3x more likely to be hacked (Hacked Website Report)

In other words, the biggest threats to your site‘s security often come from the very tools you use to extend its functionality. That‘s why a thorough audit is essential – it helps you identify and remove any unsafe or unnecessary plugins and themes.

But the risks go beyond just plugins. Other common WordPress vulnerabilities include:

• Brute force attacks on weak passwords
• Outdated WordPress core installations
• Unprotected wp-config.php and .htaccess files
• Poorly configured file permissions
• Insecure or outdated PHP versions
• Unsafe data handling practices
• DDoS attacks on web hosting

A proper security audit looks for all of these weaknesses to provide the most comprehensive protection.

Consequences of Not Doing a WordPress Security Audit

Still not convinced you need to audit your WordPress security? Let‘s talk about what could happen if your site does get hacked:

• Defacement: Hackers replace your content with their own (often obscene) messaging
• Malware infections: Malicious code is injected to steal data or infect your visitors
• SEO spam: Hackers use your site to link to their spammy sites, hurting your rankings
• Ransomware: Your data is encrypted and held hostage until you pay a hefty fee
• Data breaches: Sensitive customer info like credit cards are stolen and sold on the dark web
• Financial theft: Hackers reroute your sales, ad revenue, or affiliate commissions
• Legal liabilities: Failure to protect user data can result in massive GDPR or CCPA fines
• Loss of consumer trust: 65% of users lose trust in a business after a data breach (RSA)

The damage from a hack can take months (or even years) to repair. In many cases, it‘s a fatal blow that a business never recovers from.

Can you really afford to take that chance with your own site and livelihood?

How to Manually Audit Your WordPress Security (Checklist)

Now that you understand the importance of a WordPress security audit, let‘s walk through how to actually do one. Here is the step-by-step checklist I use when manually auditing a client‘s site:

1. Check WordPress Core & Config

• Ensure WordPress core is up-to-date (latest version)
• Verify wp-config.php is not publicly accessible
• Check if WordPress debug mode is turned off
• Ensure all WordPress files & folders have proper permissions (avoid 777)
• Remove unused WordPress themes & plugins
• Review WordPress salts & security keys
• Disable file editing in wp-config.php

2. Review Themes & Plugins

• Ensure active theme is up-to-date & from reputable source
• Check for unnecessary or unused plugins
• Verify plugins are updated to latest versions
• Research plugins/themes reputation before installing
• Use child theme for any theme customizations

3. Inspect Users & Passwords

• Delete unused user accounts & unneeded roles
• Verify admin has strong, unique password
• Enforce strong password policies for all users
• Enable 2-factor authentication for admin & key users
• Check user registration settings & role capabilities
• Monitor for any suspicious new user registrations

4. Test Hosting & Server Config

• Check if site is running latest stable versions of PHP & MySQL
• Ensure hosting account uses proper file permissions
• Test if server has needed security modules enabled (mod_security, etc.)
• Verify SSL certificate is valid & properly installed
• Assess hosting security features (IP blocking, 2FA, etc.)
• Implement secure credential & SFTP practices

5. Run Automated Scans & Tests

• Install reputable security plugin to automate malware scans
• Perform theme & plugin vulnerability scans
• Check site for any public facing debug or error logs
• Test all forms for XSS & SQL injection vulnerabilities
• Scan for SEO spam, phishing pages, or malicious redirects
• Monitor uptime, performance & SSL for signs of issues

I recommend doing a manual audit at least quarterly and after any major site changes. Tools can help automate pieces of it, but nothing beats human expertise and intuition to really tighten up security.

Best WordPress Security Audit Plugins & Automated Tools

As you can see, manually auditing your WordPress security is quite involved! Fortunately, there are several great plugins that can automate key parts of the process:

These security plugins are great for automating daily scans and catching most common threats. However, they are not a complete substitute for human review and expertise.

I always recommend coupling automated tools with regular manual audits. Use the plugins to handle the routine heavy lifting, but don‘t skip the hands-on checks and professional oversight.

Actionable Steps to Take After Your WordPress Security Audit

Once you finish your WordPress security audit, what should you actually do with the results? Here are some key next steps I recommend:

1. Immediately update any outdated core files, themes or plugins
2. Remove all unused plugins, themes and user accounts
3. Fix any unsafe file permissions, especially on wp-config.php
4. Implement 2FA and strong password policies for all users
5. Upgrade hosting to account with key security features if lacking
6. Configure backup system to perform automated daily backups
7. Address any high-risk issues detected by security scans ASAP
8. Create checklist for ongoing security monitoring & maintenance

The key is to prioritize the most serious vulnerabilities and work your way down. Don‘t let the audit results sit in a drawer collecting dust – create an action plan and start knocking out those security to-dos.

Key Takeaways for Maintaining WordPress Security Year-Round

Security is not a one-and-done task – it requires ongoing vigilance and maintenance. Beyond your annual in-depth audit, adopt these habits to keep your WordPress site safe year-round:

• Always update to the latest version of WordPress core
• Only install plugins and themes from reputable sources
• Delete unused plugins and themes completely from your server
• Perform automated malware scans at least once per month
• Enable and test backups regularly (and store copies off-site)
• Enforce strong password hygiene for all users
• Implement brute force login protection via plugin or server-side
• Choose a secure managed WordPress host committed to security
• Stay informed on the latest WordPress security threats & exploits

By making security a regular part of your WordPress maintenance workflow, you can stay ahead of emerging threats and sleep easier at night.

Wrapping Up

I know this was a comprehensive guide to WordPress security auditing – thanks for sticking with me!

The key takeaway I want to leave you with is this:

No WordPress site is 100% hack-proof, but performing regular security audits is one of the most effective ways to prevent attacks and keep your site safe.

Yes, it requires some time and effort. But I promise it‘s worth the peace of mind knowing you‘ve done everything possible to protect your site, your users, and your livelihood.

So schedule some time on your calendar, grab this checklist, and start auditing your WordPress security today. Your future self (and your website visitors) will thank you!