By default, WordPress makes certain directories writeable so that you and other authorized users on your website can easily upload themes, plugins, images, and videos to your website.
However this capability can be abused if it gets in the wrong hand such as hackers who can use it to upload backdoor access files or malware to your website.
These malicious files are often disguised as core WordPress files. They are mostly written in PHP and can run in the background to gain full access to every aspect of your website.
Sounds scary, right?
Don’t worry there is an easy fix for that. Basically, you’d simply disable PHP execution in certain directories where you don’t need it. Doing so, any PHP files will not run inside those directories.
In this article, we will show you how to disable PHP execution in WordPress using the .htaccess file.
Disabling PHP Execution in Certain WordPress Directories Using .htaccess File
Most WordPress sites have a .htaccess file in the root folder. This is a powerful configuration file used to password protect admin area, disable directory browsing, generate SEO friendly URL structure, and more.
By default, the .htaccess file located in your WordPress website’s root folder, but you can also create and use it inside your inner WordPress directories.
To protect your website from backdoor access files, you need to create a .htaccess file and upload it to your site’s /wp-includes/ and /wp-content/uploads/ directories.
Simply create a blank file on your computer by using a text editor like Notepad (TextEdit on Mac). Save the file as .htaccess and paste the following code inside it.
<Files *.php> deny from all </Files>
Now save the file on your computer.
Next, you need to upload this file to /wp-includes/ and /wp-content/uploads/ folders on your WordPress hosting server.
You can upload it by using an FTP client or via File Manager app in your hosting account’s cPanel dashboard.
Once the .htaccess file with the above code is added, it will stop any PHP file to run in these directories.
Using this .htaccess trick helps you harden your WordPress security, but it is not a FIX for an already hacked WordPress site.
Backdoors are cleverly disguised and can already be hidden in plain sight.
If you want to check for possible backdoors on your website, then you need to activate Sucuri on your website.
It also effectively blocks most hacking attempts to even reach your website by adding a firewall between your site and suspicious traffic.
Most importantly, if your WordPress site gets hacked, then they will clean it up for you. To learn more, you can check our Sucuri review because we have been using their service for years.
We hope this article helped you to learn how to disable PHP execution in certain WordPress directories to harden your website security. If you are looking for a complete guide, check out our ultimate WordPress security guide.
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