Unveiling WordPress Security Gaps: A Data-Driven Analysis from HeyPulso

At HeyPulso, our mission is to illuminate the often-hidden security posture of websites across the internet. We leverage our advanced scanning technology to provide clear, actionable insights into potential vulnerabilities and areas for improvement. Recently, our scanner embarked on an extensive sweep, analyzing a staggering 43,960 domains to understand the current state of web security, with a particular focus on the ubiquitous WordPress platform.

What we found paints a critical picture, especially for the 10,984 WordPress sites identified within our dataset. From missing fundamental security headers to alarming maintenance scores, the data suggests a widespread need for enhanced security practices. This report delves into these findings, offering a comprehensive look at the challenges and opportunities for WordPress site owners.

The Digital Landscape: A Snapshot of Our Scanned Domains

Our scanning operation cast a wide net, encompassing nearly 44,000 domains. Out of this vast pool, WordPress emerged as a dominant platform, powering over a quarter of the sites we analyzed. This prevalence underscores the importance of robust security within the WordPress ecosystem, as its vulnerabilities can have far-reaching consequences.

SSL Adoption and Geographical Spread

One foundational element of web security is SSL/TLS encryption. Our data shows that 23,701 domains (53.9%) across all scanned sites have valid SSL certificates. While this represents a majority, it also means a significant portion of the internet still operates without this basic layer of protection, leaving data transmissions vulnerable to interception.

Geographically, our scanner observed a diverse distribution of domains. The top five countries by scanned domains were:

• France (FR): 18,709 domains
• Chile (CL): 8,743 domains
• United States (US): 1,247 domains
• Spain (ES): 618 domains
• Germany (DE): 281 domains

This global footprint highlights that security concerns are not confined to a single region but are a universal challenge. Across these regions, the average response time for websites was 1346ms, indicating potential performance bottlenecks that can impact user experience and SEO, often linked to underlying maintenance issues.

The Shadow of Phishing

Perhaps one of the most alarming findings was the detection of 238 phishing sites within the total scanned domains. These malicious sites represent a direct threat to users, aiming to steal sensitive information. Their presence underscores the constant vigilance required in the digital space and the critical role of security scanning in identifying and mitigating such dangers.

Critical Security Gaps: Missing Headers and Exposed Services

For the 10,984 WordPress sites we analyzed, a deeper dive into their security configurations revealed significant vulnerabilities, particularly concerning HTTP security headers and exposed services. These elements are crucial for protecting websites and their users from common web-based attacks.

The Alarming Absence of Security Headers

Security headers provide an essential layer of defense, instructing browsers on how to behave when interacting with a website. Our findings indicate a widespread neglect of these fundamental protections:

• 82.9% missing X-Frame-Options: This header prevents clickjacking attacks by controlling whether a site can be embedded in an iframe. Its absence leaves sites susceptible to malicious embedding.
• 88.1% missing Content Security Policy (CSP): CSP is a powerful security standard that helps prevent Cross-Site Scripting (XSS) attacks by specifying which dynamic resources (scripts, styles, images) are allowed to load. With 88.1% of WordPress sites lacking CSP, the door is wide open for XSS vulnerabilities.
• 77.9% missing HSTS (HTTP Strict Transport Security): HSTS forces browsers to interact with a site only over HTTPS, preventing downgrade attacks and cookie hijacking. The high percentage of sites missing HSTS means many users could still be vulnerable to insecure connections.

These statistics are concerning. They indicate that the vast majority of WordPress sites in our dataset are failing to implement basic security measures that could significantly reduce their attack surface.

The Peril of Exposed XML-RPC

Another critical finding was that 49.9% of WordPress sites had XML-RPC exposed. XML-RPC is a feature that allows WordPress to communicate with external applications. While it has legitimate uses, it has historically been a target for brute-force attacks and DDoS amplification due to known vulnerabilities. Keeping it exposed without proper safeguards presents a significant security risk that nearly half of the WordPress sites in our scan are currently facing.

Maintenance Matters: A Deep Dive into Site Health

Beyond specific technical configurations, the overall health and maintenance of a WordPress site play a pivotal role in its security posture. HeyPulso’s scanner assigns a ‘Maintenance Score’ to each of the 10,984 WordPress sites, grading them from A to F based on various factors including updates, configurations, and overall health. The results are stark:

WordPress Maintenance Grade Distribution

Grade	Score Range	Number of Sites	Percentage of Sites
A	80-100	57	0.5%
B	60-79	4096	37.3%
C	40-59	5561	50.6%
D	20-39	1169	10.6%
F	0-19	101	0.9%

This distribution reveals a disturbing trend: over 61% of WordPress sites (C, D, and F grades combined) are operating with significant maintenance deficiencies. Only a tiny fraction (0.5%) achieve an ‘A’ grade, indicating excellent maintenance. The overwhelming majority fall into the ‘C’ category, suggesting average but often insufficient attention to critical updates, performance optimization, and security configurations. Poor maintenance directly correlates with increased vulnerability to attacks, slower performance (contributing to the 1346ms average response time), and a degraded user experience.

The Ecosystem: Popular Plugins and Themes

WordPress’s strength lies in its vast ecosystem of plugins and themes. However, this extensibility also introduces potential security risks if not managed properly. Our scan identified the most prevalent plugins and themes, highlighting their widespread adoption.

Top 10 Most Popular WordPress Plugins

Plugin Name	Installations
Contact Form 7	3152
Elementor	3070
Elementor Pro	1783
Revslider	1055
Complianz Gdpr	1033
Cookie Notice	852
Woocommerce	837
Wp Rocket	748
Js_composer	726
Pojo Accessibility	661

Plugins like Contact Form 7 and Elementor are incredibly popular, found on thousands of sites. While these plugins are generally well-maintained by their developers, their widespread use means they are prime targets for attackers. Any discovered vulnerability can impact a massive number of sites. For instance, Revslider, while still popular (1055 installations), has a history of critical vulnerabilities that, if unpatched, could expose sites to severe risks.

Top 5 Most Popular WordPress Themes

Theme Name	Installations
hello-elementor	1059
Divi	951
astra	611
twentyseventeen	287
oceanwp	201

Similarly, themes like Hello Elementor and Divi are foundational for many WordPress designs. The security of a theme is as crucial as that of the core WordPress installation or its plugins. Outdated or poorly coded themes can introduce vulnerabilities, making regular updates and choosing reputable developers paramount.

Key Takeaways and Recommendations

Our analysis of 10,984 WordPress sites from a total of 43,960 scanned domains reveals clear areas where WordPress security needs urgent attention:

1. Fundamental Security Headers are Missing: The overwhelming absence of X-Frame-Options, CSP, and HSTS leaves sites exposed to common attacks. Recommendation: Implement a robust set of security headers immediately. Tools and plugins can assist with this.
2. XML-RPC Remains a Risk: Nearly half of all WordPress sites expose XML-RPC, a known attack vector. Recommendation: Disable XML-RPC if not actively used, or secure it with strong authentication and rate limiting.
3. Maintenance is Critically Lacking: The vast majority of WordPress sites (over 61%) exhibit poor to average maintenance scores. Recommendation: Prioritize regular updates for WordPress core, themes, and plugins. Implement a consistent backup strategy and monitor site health regularly.
4. Popularity Demands Vigilance: While popular plugins and themes offer great functionality, their widespread adoption makes them attractive targets. Recommendation: Always keep plugins and themes updated to their latest versions, remove unused ones, and only install from trusted sources.
5. SSL is Non-Negotiable: While over half of all sites use SSL, it’s not enough. Recommendation: Ensure all websites, especially WordPress sites, enforce HTTPS for all traffic to protect user data.

The findings from HeyPulso’s scanner are a call to action for every WordPress site owner. Proactive security measures, consistent maintenance, and an understanding of potential threats are no longer optional but essential in today’s digital landscape. Don’t let your site become another statistic.

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