WordPress Security Risks

WordPress Security Risks: 12 Major Threats Every Website Owner Should Know

WordPress gives website owners the freedom to create almost anything—from personal blogs and business websites to membership platforms and complete online stores. That flexibility comes largely from its enormous ecosystem of plugins and themes.

However, every additional plugin, theme, administrator account, and external integration can introduce another potential security risk.

As of July 16, 2026, WordPress is used by approximately 41.2% of all websites and holds around 59.1% of the known content management system market. Its popularity makes it useful, well-supported, and familiar—but it also makes WordPress websites attractive targets for automated attacks.

WordPress itself is not automatically insecure. In many cases, compromised websites are affected by outdated extensions, poorly maintained themes, stolen passwords, unsafe hosting configurations, or a lack of regular monitoring.

This guide from EG-WP explains the most important WordPress security risks, how attackers take advantage of them, and what website owners can do to protect their plugins, themes, customer information, and online revenue.

How Serious Are WordPress Security Risks?

The scale of the WordPress ecosystem creates a large and constantly changing attack surface.

Patchstack recorded 11,334 new vulnerabilities in the WordPress ecosystem during 2025, representing a 42% increase compared with 2024. Approximately 36% of those vulnerabilities were considered serious enough to represent a practical threat, while 17% were classified as high priority and potentially suitable for automated attacks.

The most important detail is where those vulnerabilities were found:

• 91% were discovered in WordPress plugins
• 9% were discovered in themes
• Only six were reported in WordPress core, and those were categorized as low-priority issues

These figures show why WordPress security is not simply a matter of installing the latest version of WordPress. Site owners must manage the complete environment, including every installed plugin, theme, account, hosting service, and third-party connection.

Attack traffic is also highly automated. Wordfence reported logging more than 54 billion malicious requests and blocking more than 55 billion password-related attacks during 2024. The company also blocked approximately nine billion cross-site scripting attempts and 1.1 billion SQL injection attempts.

A small website should therefore not assume that it is too unimportant to be attacked. Bots do not only search for famous brands. They continuously scan large numbers of websites for known plugin versions, exposed login pages, weak passwords, and unpatched vulnerabilities.

1. Outdated WordPress Plugins

Outdated plugins are one of the most significant WordPress security risks.

Plugins add useful features such as contact forms, payment gateways, page builders, SEO controls, backups, product filters, and membership systems. However, they also add new PHP, JavaScript, database, and API functionality to the website.

When a security researcher discovers a plugin vulnerability, the developer may release an updated version containing a fix. Once information about that vulnerability becomes public, attackers can create automated scans that look for websites still running the affected version.

The official WordPress administration documentation describes keeping WordPress, plugins, and themes updated as the most important WordPress security action. It also recommends choosing products that continue to receive active updates.

Website owners should:

• Update plugins as soon as stable security fixes become available.
• Remove plugins that are no longer needed.
• Replace abandoned plugins with actively maintained alternatives.
• Check whether an update includes a security fix.
• Create a backup before installing major updates.
• Test important updates on a staging website when possible.

Deactivating an unused plugin is not always enough. Its files may remain on the server and could still create unnecessary risk. Plugins that are no longer required should normally be removed completely.

2. Vulnerable or Abandoned Themes

Themes affect more than a website’s visual appearance. Many modern WordPress themes include custom forms, page-building tools, shortcodes, widgets, account features, bundled plugins, and other advanced functions.

This means a theme can contain security vulnerabilities in much the same way as a plugin.

An abandoned theme is particularly dangerous because newly discovered issues may never receive a patch. A website might continue to look and function normally while relying on code that has not been reviewed or updated for years.

Even an inactive theme can leave files on the hosting account. Site owners should generally keep the active theme, one current default WordPress theme for troubleshooting, and remove unnecessary themes.

Before selecting a theme, examine:

• How recently it was updated.
• Whether it supports the current WordPress and PHP versions.
• Whether its developer publishes regular fixes.
• Whether bundled plugins can be updated separately.
• Whether clear documentation and support are available.

3. Assuming Premium Means Completely Secure

Paying for a plugin or theme does not automatically eliminate security risks.

Premium software can provide professional support, frequent updates, better documentation, and more structured development. However, it is still software, and software can contain mistakes.

Patchstack received 1,983 valid vulnerability reports involving premium or freemium WordPress components during its 2025 research. It classified 59% of those reports as high priority and another 17% as medium priority. In total, Patchstack considered 76% of the vulnerabilities found in the examined premium components exploitable in practical attacks.

This does not mean website owners should avoid premium WordPress products. It means they should choose them carefully and maintain them properly.

When purchasing WordPress plugin or theme activations, consider more than the product’s feature list. Update availability, clean installation files, developer activity, version compatibility, vulnerability monitoring, and reliable support can be just as important as design or functionality.

At EG-WP, WordPress products should be treated as long-term parts of a website’s technical infrastructure—not as files that are installed once and forgotten.

4. Delayed or Missing Security Patches

Installing updates is essential, but an update cannot protect a website when the developer has not released one.

According to Patchstack, 46% of vulnerabilities disclosed during its 2025 reporting cycle did not receive a developer fix before public disclosure. This creates a difficult period in which attackers may know about a vulnerability while affected website owners still have no official update available.

Possible responses include temporarily disabling the affected feature, replacing the vulnerable product, restricting access, applying a virtual patch through a web application firewall, or following specific guidance from the developer or security researcher.

This is why effective WordPress security requires multiple protective layers. Updates are critical, but they should not be the website’s only defense.

5. Weak Passwords and Brute-Force Login Attacks

Weak or reused passwords remain one of the most preventable WordPress security risks.

In a brute-force attack, automated systems repeatedly test usernames and passwords until they discover a valid combination. Attackers may also use credentials leaked from another service, hoping that a WordPress administrator reused the same password.

The scale of this activity is enormous. During the fourth quarter of 2025 alone, Wordfence reported blocking 13.8 billion brute-force login attempts originating from approximately 40.9 million unique IP addresses across the websites it protected.

A successful login can give an attacker access to pages, plugins, customer records, store settings, payment integrations, and administrator tools. The risk becomes even greater when several users share one administrator account or when former employees retain access.

Every WordPress website should use:

• Long, unique passwords generated by a password manager.
• Two-factor authentication for administrators and store managers.
• Limited login attempts or intelligent rate limiting.
• Individual accounts for every team member.
• The lowest user role required for each person’s work.
• Immediate removal of accounts that are no longer needed.

WordPress recommends two-step authentication because passwords can be guessed, stolen, reused, or exposed during an external data breach. Two-factor authentication adds another identity check, reducing the value of a stolen password.

Changing the default administrator username can reduce basic automated attempts, but it should never replace strong passwords and two-factor authentication.

6. Malicious, Nulled, or Modified Plugin and Theme Files

A premium plugin offered free through an unknown download website may look like a bargain. In reality, the file could have been modified before it was uploaded.

Attackers can hide malicious code inside a plugin or theme package. That code may create unauthorized administrator accounts, inject advertisements, redirect visitors, collect sensitive information, or provide continued access to the server.

The danger is that the product may still work as expected. A page builder may continue creating pages, or a theme may continue displaying the correct design, while hidden code operates in the background.

Wordfence detected malware on approximately 467,000 protected websites during Q4 2025, with an average of 55 infected files found on each affected site. Its data also noted that PHP malware is often associated with backdoors, web shells, information stealers, and payment skimmers.

To reduce this risk, WordPress products should come from a trusted source with transparent version information and unmodified installation files. Website owners should avoid unknown “nulled” download websites, scan new packages, and keep reliable backups before installing anything.

For EG-WP customers, security should be considered when choosing any plugin or theme activation. Price matters, but file integrity, update access, compatibility, and dependable support are equally important.

7. SQL Injection Vulnerabilities

WordPress stores website information in a database. This can include posts, user accounts, settings, orders, customer details, and product information.

A SQL injection vulnerability occurs when unsafe input is inserted into a database query. A successful attack may allow an attacker to read private records, modify information, delete data, bypass authentication, or interfere with database operations.

SQL injection represented approximately 6.92% of WordPress ecosystem vulnerabilities recorded by Patchstack in 2026. Although this percentage is lower than XSS or broken access control, the possible consequences can be severe.

Site owners cannot repair insecure plugin code simply by changing a WordPress setting. Protection depends on installing developer patches, replacing abandoned products, using a web application firewall, limiting database permissions, and maintaining recoverable backups.

8. Cross-Site Scripting

Cross-site scripting, commonly abbreviated as XSS, was the most frequently recorded WordPress vulnerability category in Patchstack’s 2026 statistics, accounting for approximately 32.82% of disclosed vulnerabilities.

XSS occurs when a website accepts unsafe content and sends it to a visitor’s browser without proper validation or encoding. The browser may then execute the content because it appears to come from a trusted website.

Depending on the vulnerability, an attacker could alter displayed content, redirect visitors, access session information, impersonate users, or perform actions through a logged-in account.

Comment forms, search fields, contact forms, product reviews, profile fields, page builders, and administrative panels can all process user-controlled input. Secure plugins must validate incoming information and safely encode content before displaying it.

Website owners should update affected extensions quickly and avoid allowing untrusted users unnecessary publishing or editing permissions.

9. Insecure Hosting and Server Configuration

Even well-maintained plugins and themes cannot fully protect a website hosted on a poorly secured server.

WordPress identifies outdated software exploits and brute-force password guessing as two of the most common attack categories. Its official hardening guidance recommends additional protection for the administration area, encrypted HTTPS connections, secure file permissions, and regular backups.

A secure WordPress hosting environment should include a supported PHP version, malware monitoring, HTTPS, server-level protection, isolated accounts, regular backups, and a clear recovery process.

For an e-commerce website, hosting security is especially important. Downtime, unauthorized product changes, injected checkout scripts, or exposed customer data can damage both revenue and customer trust.

10. E-Commerce and Payment Security Threats

WordPress stores face additional risks because they process orders, customer accounts, billing details, addresses, discount codes, and connections to payment services.

Attackers may attempt to inject malicious checkout scripts, redirect customers to fraudulent payment pages, take over store-manager accounts, change payment settings, or extract information stored in the WordPress database.

WooCommerce’s official security guidance warns that an online-store breach can lead to financial losses, reputational damage, and reduced customer trust. It recommends securing the wider WordPress environment, regularly updating themes and plugins, protecting customer data, and following secure development practices.

Store owners should pay particular attention to:

• Payment-gateway plugins
• Checkout customization plugins
• Customer account extensions
• Subscription and membership tools
• Analytics and tracking scripts
• Product-import plugins
• Shipping and tax integrations
• Administrator and store-manager accounts

Each integration should be treated as part of the store’s security perimeter.

A security problem does not need to appear inside WooCommerce itself to affect a WooCommerce store. A vulnerability in an unrelated form plugin, page builder, analytics extension, or administrator tool could give an attacker enough access to modify the checkout process.

Software vulnerabilities have also become a broader cybersecurity concern. Verizon’s 2026 Data Breach Investigations Report examined more than 31,000 security incidents and found that vulnerability exploitation was the initial access method in 31% of breaches. Although this figure covers organizations beyond WordPress, it demonstrates why businesses must patch exposed software quickly.

Wordfence added 2,738 vulnerabilities to its WordPress vulnerability database during the first quarter of 2026. Of these, 198 were categorized as common and dangerous vulnerabilities that attackers may consider attractive targets.

Online-store owners should therefore monitor plugin vulnerabilities continuously rather than relying on an occasional manual check.

11. Excessive User Permissions

Not every WordPress user needs administrator access.

An administrator can normally install plugins, change themes, create users, modify settings, and control almost every part of a website. Giving this role to too many people increases the possible impact of a stolen password, compromised device, phishing email, or accidental mistake.

WordPress includes several standard roles for different levels of access:

• Administrator: Full control of most website functions.
• Editor: Can manage and publish content from multiple users.
• Author: Can publish and manage their own posts.
• Contributor: Can write posts but cannot publish them.
• Subscriber: Can manage only their own profile.

WooCommerce also provides roles such as Customer and Shop Manager. A Shop Manager can operate many store functions without necessarily receiving complete administrative control.

Follow the principle of least privilege: every person, service, and application should receive only the permissions required to complete its task.

Review user accounts regularly. Remove accounts belonging to former employees, agencies, developers, and temporary contractors. Replace shared accounts with individual accounts so that important actions can be traced to the correct user.

API keys, application passwords, staging credentials, hosting accounts, and file-transfer access should receive the same attention. An old integration can remain a security risk even after its related WordPress plugin has been removed.

12. Missing or Unusable Backups

A backup does not prevent an attack, but it can significantly improve recovery.

Without a usable backup, a website owner may be unable to restore deleted products, damaged pages, customer records, configuration files, or previous versions of modified code.

A complete WordPress backup requires both the website files and the database. The official WordPress documentation explains that both components are needed to restore a typical WordPress website fully.

WordPress files can contain:

• Plugins and themes
• Uploaded images and documents
• Configuration files
• Custom code
• Server-level instructions

The database can contain:

• Posts and pages
• Website settings
• User accounts
• Product information
• Orders and customer details
• Plugin and theme configuration

Backups should run automatically and be stored separately from the main hosting account. If every backup is stored on the same compromised server, an attacker or server failure could damage the original website and its backups at the same time.

The appropriate backup frequency depends on how often the site changes. A basic company website may require daily backups, while a busy online store may need more frequent database backups to reduce the number of orders lost during recovery.

Most importantly, test the restoration process. A backup should not be considered reliable until it has been successfully restored in a safe environment.

WordPress Security Checklist

Use this checklist to reduce the most common WordPress plugin and theme security risks:

1. Keep WordPress core updated.
2. Update plugins and themes promptly.
3. Remove unused extensions and themes.
4. Replace abandoned products.
5. Download files only from trustworthy sources.
6. Use strong, unique passwords.
7. Enable two-factor authentication.
8. Limit administrator accounts.
9. Review users, API keys, and integrations.
10. Install HTTPS across the entire website.
11. Use a reputable WordPress hosting provider.
12. Configure secure server and file permissions.
13. Add firewall and malware-scanning protection.
14. Monitor known plugin and theme vulnerabilities.
15. Back up both files and databases.
16. Store backups away from the main server.
17. Test backups and the recovery process.
18. Use a staging environment for major updates.
19. Monitor unexpected file and account changes.
20. Prepare a written incident-response plan.

WordPress also recommends restricting file permissions as much as practical because unnecessarily writable files can increase risk, particularly in shared hosting environments.

Frequently Asked Questions

Is WordPress secure?

WordPress can provide a secure foundation when it is updated, properly configured, and supported by secure hosting. Many compromises involve vulnerable extensions, stolen credentials, malicious files, or weak server configurations rather than WordPress core alone.

Are WordPress plugins safe?

Many plugins are safe to use, but no plugin should be considered permanently risk-free. Choose actively maintained products, install updates, monitor vulnerability reports, and remove plugins that are no longer required.

Can inactive plugins create security risks?

An inactive plugin’s files can remain on the server. Removing unused plugins reduces unnecessary code and makes the website easier to maintain.

Do I need a WordPress security plugin?

A reputable security plugin can add useful features such as malware scanning, login protection, firewall rules, and security alerts. However, it cannot replace secure hosting, updates, backups, strong authentication, and careful extension selection.

How often should I update WordPress plugins and themes?

Check for updates frequently and prioritize security-related releases. Critical vulnerabilities may require immediate action, while major feature updates may benefit from staging-site testing before deployment.

Final Thoughts

WordPress security is not a one-time installation task. It is an ongoing process involving updates, access control, trusted software, monitoring, backups, and recovery preparation.

Plugins and themes make WordPress powerful, but every installed product should have a clear purpose, a trustworthy source, an active update path, and compatibility with the rest of the website.

For EG-WP customers, choosing the right WordPress plugin or theme activation should involve more than comparing features and prices. Consider maintenance, update availability, source reliability, technical compatibility, and long-term support before adding any product to a live website.

A smaller, carefully maintained collection of plugins and themes is usually easier to protect than a website filled with unused or outdated extensions.

Stay updated, limit access, monitor your website, and never assume that a working WordPress site is automatically a secure WordPress site.