WordPress SQL Injection


In all probability, because of something called ‘SQL injections’, you’re losing traffic, sales, and the trust of your consumers every day from your WordPress pages.

About why?

Easy, some hackers figured it was a smart idea to syphon and lead your business traffic to:

  • Adult sites;
  • illegal drug sites;
  • religious ads;
  • or some other malicious site

It’s being blacklisted on Google for your blog. You’re still losing your clients’ and community’s confidence.

And the worst part?

This nameless, faceless hacker doesn’t believe there’s something you can do with it.

The odd pop-ups, redirects, and 403 errors are now plaguing your web.

For over a decade, we have collaborated with more than one million WordPress websites and come across these hacks all the time.

Before it could harm the platform, we helped uninstall WordPress SQL injection ransomware from hundreds of websites.

We’re going to teach you in this post how you can get rid of this hack and get your site back to its original state as fast as possible.


To delete your site’s SQL injection, instal MalCare. This will tidy up the website in 60 seconds. And then shore up the security using the security hardening capabilities of MalCare. That’ll keep your website secure from potential attacks by SQL injection.

Hacker bots are programmed within a few minutes to carry out hundreds of SQL injection attempts.

Your website will be destroyed with one good attempt.

If hundreds of SQL injection attempts have been identified by your firewall or security plugin, there is a fair possibility that your website has already been compromised.

If it isn’t the case, so you are fortunate.

But how do you know if your site is still compromised for sure?

And if so, how can you uninstall the malware?

Don’t worry, we’ll show you the precise measures you need to take on your web to identify and clean up SQL injection threats.

But before we get into that, trying to explain what a SQL injection attack actually is is a smart idea. If you need to search your site urgently for contamination, however, then hop to this section.

What Is An SQL Injection Attack?

A database is used by the WordPress website to handle data including blogs, pages, comments, etc. All of this information is stored in database tables in an ordered fashion.


Through carrying out SQL injection attacks, hackers obtain access to the servers.

So why does anyone like the servers to be accessed?

A nice question.

They either plan to steal private data (like user details and credit card information) or destroy your site as hackers attempt to break into your website.

If malicious codes are introduced with the purpose of accessing data in your database, it is considered an in-band SQL injection. But if by removing content from your servers, the purpose is to damage your web, then it’s called a Blind SQL injection attack.

We know what you are wondering – why is it called SQL injection attack?

It has to be able to communicate with the database in order for the website to store data in the database. SQL is a language used by your site to add, edit, uninstall, and browse database data. To try to access the database, programmers use the same language.

They manipulate the input fields on the websites to insert malicious scripts into the database, such as a feedback form or the search bar. It is, thus, called a SQL injection attack.

How to Remove WordPress SQL Injection From Your WordPress Site

Do you experience any of the following:

  • Receiving hundreds of emails within a couple of minutes from your contact form.
  • Redirecting ads to dubious sites.
  • On certain pages, odd popups occur and on others, errors.

These are typical indicators of an injection hack with SQL.

That said, it might not even be clear to this sort of hack. Only to steal records, hackers might have compromised your website. They don’t have to make any improvements to the site.

So while it seems completely normal for your site, it will also be compromised. In order to be sure, you need to scan the site.

There are a lot of scanners from which to pick. That said, modern, sophisticated, or extremely well-concealed malware can not be identified by several scanning plugins. We are suggesting MalCare because it’s a mile ahead of the game. This is how:

  • In order to find malicious codes, MalCare does not rely on pattern matching. Instead, it comes packed with smart signals that determine the code’s actions. This causes new and complicated malicious codes to be identified by the plugin.
  • Not only does it search the WordPress archives, but also the archive. To uncover malicious codes or malware, it looks at each nook and corner.
  • To guarantee that the website is not overrun, it conducts scans on its own server.
  • On a regular basis, the plugin will automatically search the web. And only when it detects some malware can it alert you.

You ought to take the following precautions to spot a hack of MalCare:

Step 1: Sign up for the WordPress Ransomware Scanner from MalCare. On your website, instal and trigger the plugin. Then add your site to your dashboard with MalCare.

It will run a search of your site instantly.

If your site is discovered to be compromised, it will alert you.

With the same app, you can go ahead and clean your website.

Some of you might be considering restoring a backup to clear up the infection. It’s not going to work. Restoring a backup would only replace existing files, not delete the malicious files that hackers have inserted.


To clean the hack, just follow the instructions below:

Step 2: Once MalCare detects that your site is hacked, it will notify you about it on its own dashboard.


Right below the notification, you should see an Auto-Clean button. Click on it.

Step 3: Next, you’ll need to enter your FTP credentials. If you don’t know what they are or how to find them, this guide and these videos will help.


Step 4: You will then be prompted to pick the folder in which your WordPress website is located. It is usually the public html archive.

For safety problems, certain website owners switch their domain to a different venue. So if you are running a customer website, then checking if the website is currently stored in the public html folder is a smart idea.


MalCare will begin cleaning your website after you have selected the folder.

It’ll take a couple of minutes for them to uninstall the website’s malware.

There are several other protection plugins, besides MalCare, that will help you detect and clean your web. These are WebARXSecurity, Wordfence, Astra Defense, Sucuri, etc. Any one of these can be taken for a ride.

How does SQL Attacks manage WordPress?

WordPress has gone to lengths over the years to try and protect the database from injection attempts by SQL.

In order to secure WordPress pages against this form of attack, user-supplied data must first be checked by input fields before being entered into the database.

WordPress has a list of functions that make it difficult to inject malicious scripts by sanitising the data entered into the input fields.

WordPress pages are, though, quite focused on themes and plugins. By using insecure themes and plugins, SQL injections are carried out. More in the next segment on this.

How Are SQL Injection Attacks Carried Out?

By leveraging a flaw that is present on your site, hackers will reach your website.

Hackers exploit flaws in the website’s input fields in the case of SQL injection attacks, such as communication forms, login boxes, sign-up boxes, comment pages, or even the search bar to upload malicious PHP scripts into the database.


Does that mean having input fields are dangerous?

Both yes and no are the responses.

Plugins or themes are controlled by input fields, such as feedback and communication types. Plugins and themes create bugs, like any other programme, that are then used by hackers to carry out SQL injection attacks.

It is difficult to make sure the plugins and themes follow in the footsteps of WordPress to avoid SQL injection attacks.

Let’s use a plugin as an example of a shape.

The details embedded in the plugin form should first be checked and sanitised before being deposited in the database.

Why verify and sanitise, though?

Validation of data: Guarantees that the data is received in a given format. A type plugin accepting phone numbers can ensure that only numeric characters are inserted by guests.

Data sanitization: It guarantees that more than what is necessary is not added. The type plugin can limit the inclusion of more than 10 characters by tourists.

If the plugin does not verify visitor inputs, a string of malicious codes would be easy to inject into the form.

The form will archive this information in the files, providing access to the database to hackers.

It’s difficult for most WordPress users to know whether the plugin or theme built on their platform carefully filters user-supplied info.

That said, there are ways you can guarantee that your site stays safe from potential threats by SQL injection. Jump to this segment to read more about shielding the web from reinfection.

Effect on Your Web of SQL Injection Attacks

The implications of a decent SQL injection attack are ugly. You can end up encountering any or more of the following consequences:

1. Critical Data Loss

You may have learned about Yahoo, Twitter, Adobe, etc. data hacks resulting in millions of accounts being hacked.

Your website is not as large as Twitter, but it holds confidential data that can lead to major problems such as loss of confidence, reputational harm, and even legal consequences if hacked.

Ecommerce websites may have stolen financial records, stolen health records from medical pages, so forth and so on.

Hackers may opt to sell or ask for ransom online for these documents.

2. Loss of Data on Website

The greatest problem for hackers is being caught after a site is compromised.

Therefore, they cautiously navigate around the site, silently carrying out operations.

Yet they may end up making changes to the database on occasions. There can be an error and a piece of data can be erased. Or it can be a malicious act that the website is harmed by the target.

As a result, you are sacrificing the content of your website.

3. Trust & Credibility Infringement Damage

Data breaches will change how your clients see your company and whether they wish to continue depending on your company.

In 2018, the Cambridge Analytica data leak debacle caused users to remove their accounts on Facebook.

You are unlikely to ever continue to do business with you when consumers find out that you have neglected to protect their health or financial record.

You will be legitimately held accountable for the destruction of data that would undoubtedly stain your reputation.

4. Suspension for Google Blacklisting & Hosting

In order not to get caught, hackers do their hardest. Carefully and in silence, they carry on their operations.

There are also no identifiable signs of a hack. It may take you a while to discover that your website has been compromised.

On a WordPress website, search engines and hosting servers are easy to select malicious activities. And when they do, to secure their own users and keep them from accessing your site, they swiftly suspend your site.


5. Cleaning Expenses

It’s no cakewalk to scrub a compromised site. Manually, you can’t do it.

You can resort to dedicated providers, but it’s a costly and time-consuming problem.

And we hope you have deep pockets to clear the pilling bills if you keep being sick.

Luckily, you are given unlimited cleanups for $99 a year for a single location through a security provider like MalCare. If you haven’t already, find out MalCare’s pricing.

How Can You Protect Your Site From Getting Reinfected?

Due to a flaw in a plugin or theme, the WordPress account was compromised.

You need to take action to deter hackers to avoid re-infections after cleaning your site.

1. Choose Themes & Plugins Carefully

Read feedback from consumers before downloading a theme or a plugin on your site.

Do not use it if the tool has been creating bugs that enable websites to get hacked.

It is doubtful that a well-built tool would create bugs too often.

It’s managed by a community of responsible developers even though it does, who can deliver a better version soon.

This will protect the protection of your website.

2. Keep Your Website Updated

Due to vulnerabilities present in a theme, plugin or the heart, SQL injection attacks are efficient.

The flaw helps hackers to inject a website with malicious code to obtain access to the database.

Through installing an update, such bugs may be repaired.

They release a fix in the form of an upgrade when developers hear about a flaw in their tool.

Your website would be protected from SQL injection attacks if you enforce the upgrade.

Holding the themes, plugins and even the core updated is critical.

Pro Tip: Ensure that automated updates to WordPress are allowed. WordPress carried out an upgrade back in 2017, patching SQL bugs. But still, since automated notifications were disabled, a number of websites were compromised.

3. Change Database Table Prefix

This would make getting to the servers more complicated for a hacker.

Just curious how?

“Your database has tables beginning with “wp_

Changing the prefix would make it difficult for the tables to be identified.

Pro Tip: A backup of the website is the first move. This move DO NOT skip. It is unsafe to make any changes to the backend of the site. You’d have a replica of your site to fall back on if anything went wrong.

> Through your hosting account, access your wp-config file.

> Simply log into the hosting account and go to cPanel > File Manager.

> Find the file wp-config.php and then open it.

> From the $table prefix=’wp_’ sentence; substitute something else for wp_. Exit and save.


4. Use a Firewall

A WordPress website is shielded from hackers by a firewall.

It examines anyone who uses the website and removes any who have a malicious activity record.

To detect and block SQL injection attacks, a firewall like Astra Protection can evaluate user inputs.

You don’t have to think about downloading a firewall plugin if you’ve used MalCare to clean your website. The MalCare Firewall blocks malicious traffic immediately.

What Next?

A folder and several files make up a WordPress website.

WordPress files are vulnerable to attacks, much like a database.

In order to protect them from hackers and bots, you need to take precautions. How to Secure a WordPress Website is a guide that can help you do exactly that.

Although you can take several security steps, having a security plugin is the one step that you can not skip.

A protection plugin such as MalCare can search your website on a regular basis, alert you immediately if it is compromised, help you clean the website within less than 60 seconds, and ensure your website is safe against potential hacking attempts.