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Home / Blog / wordpress 4.2.12
Security Advisory

WordPress 4.2.12 Security: 1 CVE Vulnerability Guide

📅 June 07, 2026 ·⏱ 5 min read ·🔒 SiteRecipe Security Team
2 websites still running wordpress 4.2.12  → View full list
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Total
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Medium

WordPress 4.2.12 is an older version of the popular content management system that powers millions of websites worldwide. While it's no longer actively supported, many sites still run this version, putting them at risk from known vulnerabilities. One critical security issue has been identified affecting the Slope Widgets plugin, a component used for managing reservations on your site.

This guide walks you through identifying whether your WordPress installation is vulnerable, understanding the risk, and implementing the necessary fixes to protect your website and visitors' data. Taking action now can prevent potential security breaches, data theft, and damage to your site's reputation.

If you're unsure about your current setup, SiteRecipe.com can help you scan and secure your WordPress environment with ease.

What is Wordpress 4.2.12?

WordPress 4.2.12 is an older version of WordPress released several years ago. While it's no longer receiving active security updates from WordPress.org, many websites continue using this version due to compatibility with specific plugins, themes, or custom code. However, running outdated software significantly increases your security risks, as hackers actively exploit known vulnerabilities in abandoned versions.

The Slope Widgets plugin, commonly used for booking and reservation systems, contains a vulnerability in versions up to 4.2.12 that allows attackers to inject malicious code. This type of attack, called Stored Cross-Site Scripting (XSS), can compromise user data, steal credentials, or inject malware directly into your website. Understanding this vulnerability is the first step toward protecting your online presence.

Key Vulnerabilities in Wordpress 4.2.12

1 CVEs found. The most critical are explained below.

MEDIUM CVE-2024-11902 6.4/10 · CVSS v3.1 ⏱ Within 7 days
Slope Widgets Plugin Security Flaw Allows Malicious Code Injection

The Slope Widgets plugin (versions up to 4.2.12) has a security weakness that allows people with admin access to inject harmful code into your website through the reservations feature. This code could then execute when visitors view your site, potentially compromising their information.

Impact: Attackers with admin or editor access could steal visitor data, redirect users to malicious sites, or deface your website content. This could damage your reputation and expose your customers to security risks.

↗ View on NVD

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How to Check If Your Website Is Affected

How to Fix These Vulnerabilities

Conclusion

Protecting your WordPress site from known vulnerabilities is not optional—it's essential for maintaining security, trust, and functionality. The CVE-2024-11902 vulnerability in Slope Widgets is easily exploitable but equally easy to fix with the steps outlined above. By taking action today, you eliminate a significant attack vector that could compromise your entire website.

Don't leave your site vulnerable to hackers. SiteRecipe.com offers automated WordPress security scanning that identifies vulnerabilities like this instantly, plus step-by-step remediation guidance tailored to your specific setup. Sign up for a free scan today and get peace of mind knowing your WordPress installation is secure and optimized.

Frequently Asked Questions

What is Stored Cross-Site Scripting (XSS)?
Stored XSS is a type of attack where malicious code is permanently saved in your website's database. When visitors view the infected page, the code executes in their browsers, potentially stealing login credentials, cookies, or personal information. This is particularly dangerous because it affects all users who visit the page.
Do I have to upgrade to a newer WordPress version?
While updating WordPress is strongly recommended for security and performance reasons, the immediate priority is removing or updating the vulnerable Slope Widgets plugin. However, WordPress 4.2.12 no longer receives security patches, so upgrading to a current version (5.x or higher) should be your long-term goal to maintain ongoing protection.
Can I use a security plugin instead of updating?
Security plugins can add extra protection, but they cannot replace keeping your core WordPress and plugins updated. A security plugin should be used alongside, not instead of, timely updates. The best approach is to update your vulnerable plugin, then add a reputable security plugin for additional defense layers.
How often should I check for WordPress vulnerabilities?
You should check at least monthly, or enable automatic updates for WordPress plugins and core files if possible. SiteRecipe.com continuously monitors new CVEs and can alert you immediately when vulnerabilities affecting your specific setup are discovered, saving you time and keeping you proactive rather than reactive.

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DISCLAIMER: This report is based on publicly available CVE data from the National Vulnerability Database (NVD) maintained by NIST. Detection of a technology version does not confirm active exploitation on any specific website. For informational purposes only. SiteRecipe is not responsible for actions taken based on this report. Always consult a qualified security professional.

Source: nvd.nist.gov · Published: June 07, 2026 · SiteRecipe.com