WordPress Security Hardening: 10 Settings Most Sites Still Have Wrong

WordPress security hardening means removing insecure defaults and locking down areas attackers commonly target. For most sites, the biggest risks are exposed login pages, outdated plugins, weak file permissions, and unnecessary features left enabled long after launch.

Many of these settings are easy to overlook because the site continues to work normally until something gets abused. The problem is that attackers look for the same weaknesses every day, and WordPress sites tend to repeat them.

Here are 10 WordPress security hardening settings many sites still have wrong.

1. Secure the Default WordPress Login Page

   /wp-login.php can be considered as predictable, accessible to the public, and highly attractive for bots. Leaving your login page unprotected will result in continuous attacks from attackers.

   The solution is simple: Modify the location of the page, add rate limiting, and use bot detection before multiple requests.

2. Two-Factor Authentication is Not Enforced

   Passwords alone are not enough anymore. Leaked credentials are cheap, common, and reused everywhere. Many site owners enable 2FA for one administrator and stop there. That leaves editors, contributors, and other backend users exposed. Attackers do not always need the top admin first. They need a foothold. Enforce two-factor authentication across every role with backend access.

3. Dashboard File Editing is Still Enabled

   WordPress core comes with the option to edit theme and plugin files directly using the admin interface. Most website administrators are unaware that it is enabled by default. The potential exploitation of this feature rises sharply when the administrator’s login credentials are breached by an attacker.

   The attacker gets the capability to insert malicious code into your website’s core features without having to gain physical access to your web server. Disabling this feature is imperative, and can be done by adding the following line of code to your wp-config.php file:

   define('DISALLOW_FILE_EDIT', true);

4. Core, Themes, and Plugins Stay Outdated

   Most WordPress exploits occur in plugins and themes. The delay is caused by concerns that an update could cause compatibility issues; however, this approach only exacerbates security issues.

   Inactive plugins are a potential risk, too. Although not being actively used, their codebase can still increase the attack surface.

   Update promptly, remove anything inactive, and drop plugins that haven’t been updated in over a year. Most reputable web development service providers include plugin audits as a baseline deliverable, precisely because outdated code is where most WordPress security incidents begin.

5. Fix Insecure WordPress File Permissions

   Overly permissive file and directory settings are still common, especially on shared hosting. When permissions are broader than necessary, unauthorized file changes become easier.

   This is where least privilege matters. Files and directories should not all use the same values, and sensitive files need tighter protection than general content. wp-config.php deserves special attention.

6. wp-config.php Is Left Exposed

   wp-config.php contains database credentials, authentication salts, and key site settings. On many websites, it stays in the default location with minimal protection.

   If the hosting setup allows it, move it one level above the web root. Add server-level restrictions and block direct browser access. It is also worth using a custom table prefix instead of the default wp_ to make basic automated attacks less predictable. A secure configuration file also plays a role in WordPress speed optimization by ensuring stable and efficient database connections.

7. Prevent PHP Execution in the Uploads Directory

   The uploads folder is designated for storing multimedia content. However, even now, many hosts enable PHP execution within /3wp-content/uploads/, which transforms a harmless content directory into a backdoor entry point. If such a malicious payload can be uploaded here, its remote execution becomes likely. In many cases, these vulnerabilities originate from weak configurations or poorly maintained components. This is why relying only on essential WordPress plugins for small businesses and keeping them updated is important for reducing unnecessary security risks.

   Block PHP execution inside /wp-content/uploads/ via server configuration or .htaccess. For Apache, add the following to an .htaccess file inside the uploads directory:

   <Files *.php>
   deny from all
   </Files>

8. XML-RPC Is Enabled Without a Reason

   XML-RPC is a legacy feature that many modern sites no longer need, yet it often stays enabled by default. That matters because it can be abused to amplify brute force activity and expand the public attack surface for little benefit.

   If you do not use it, disable it. If you do, restrict access as tightly as possible. Apply the same review mindset to unnecessary REST API exposure as well.

9. Force HTTPS and Add Security Headers

   Some sites have SSL installed but still allow traffic over plain HTTP, which means the protection is incomplete. It leaves room for unencrypted requests and weaker session protection.

   Security headers are often missing, too. X-Frame-Options, Content-Security-Policy, and Strict-Transport-Security all reduce common browser-side risks.

   Force HTTPS at the server level and add the right headers through server configuration or a trusted security layer. FTI Tech’s web security approach includes these controls as part of standard site hardening.

10. Debug Mode Is Still On in Production

    WP_DEBUG must never be used in a live environment. This would allow people to get sensitive data, such as file locations, names of plugins used, information about the database configuration, and the PHP version used through errors.

    A log file that is publicly accessible creates an identical problem for the website owner.

    WP_DEBUG has to be set to false in a production environment.

Also Read: Fixing “There has been a critical error on this website” In WordPress: 5 Easy Methods.

Why WordPress Security Settings Matter Together?

Most WordPress compromises are not caused by a single mistake. They happen when several small weaknesses exist at the same time.

A common attack path looks like this: an exposed login page enables credential stuffing, a contributor account gets compromised, dashboard file editing is still on, and the uploads directory is used to run malicious code. Each weak setting makes the next one more useful.

That is why WordPress hardening works best as a layered system. Security decisions made during custom WordPress development determine how much exposure a site carries from day one. This is also why teams should stop thinking about individual controls as isolated tasks. A login fix helps, but not enough if outdated plugins remain in place. Plugin updates help, but not enough if debug mode still leaks useful information. WordPress security hardening works when small fixes start reinforcing each other.

Final Thought

Most WordPress security problems are visible, but still just delayed. Teams already know a plugin needs to be removed, a login page needs better protection, or a debug flag needs to be turned off. It slips behind other work until an attacker gets there first.

The settings discussed above are not obscure or difficult to fix. They are just consistently skipped, and that is exactly what makes them effective targets.

If even a few of the settings above are still wrong on your site, fix them now. You do not need a full security audit or a rebuild; you just need fewer open doors. If you are unsure where to start, get help securing your WordPress site, and we will walk you through your WordPress security hardening priorities.