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Home / Blog / wordpress 3.3.1
Security Advisory

WordPress 3.3.1: 58 Critical Vulnerabilities Explained

📅 June 07, 2026 ·⏱ 5 min read ·🔒 SiteRecipe Security Team
44 websites still running wordpress 3.3.1  → View full list
58
Total
5
Critical
13
High
38
Medium
2
Low

WordPress 3.3.1 contains 58 documented security vulnerabilities that put thousands of websites at serious risk. With 5 critical-severity flaws and 13 high-severity issues, this outdated version leaves your site vulnerable to remote code execution, arbitrary file uploads, and authentication bypass attacks. If you're still running WordPress 3.3.1, immediate action is required to protect your data and your visitors.

This comprehensive guide walks you through identifying whether your site is affected, understanding the specific threats you face, and implementing the fixes needed to secure your WordPress installation. Whether you're a business owner or web administrator, understanding these vulnerabilities is essential for maintaining a safe online presence.

What is Wordpress 3.3.1?

WordPress 3.3.1 is an extremely outdated version of WordPress, released over a decade ago. It's a content management system that helps people build and manage websites without needing to write code. However, this ancient version was never designed to defend against modern cyber threats and attackers have had years to discover and exploit its weaknesses.

Today, WordPress 3.3.1 is effectively abandoned by its creators with no security updates or patches being released. This means any vulnerability discovered—and 58 have been found—will never be fixed by the WordPress team. Operating a website on this version is like leaving your front door unlocked while advertising that you have valuable items inside.

Key Vulnerabilities in Wordpress 3.3.1

58 CVEs found. The most critical are explained below.

CRITICAL CVE-2019-16932 10.0/10 · CVSS v3.1 ⏱ Immediate
Visualizer Plugin Can Be Used to Access Internal Systems

The Visualizer plugin has a hidden vulnerability that allows attackers to trick your website into accessing internal systems or data it shouldn't be able to reach. This happens through a specific upload feature that doesn't properly validate requests.

Impact: Attackers could potentially access sensitive internal information about your server, database, or connected systems without being noticed.

↗ View on NVD
CRITICAL CVE-2021-3120 9.8/10 · CVSS v3.1 ⏱ Immediate
YITH Gift Cards Plugin Allows Unauthorized Code Execution

The YITH WooCommerce Gift Cards Premium plugin doesn't properly check what files are being uploaded to your website. This allows attackers to upload malicious code that runs on your server.

Impact: Attackers could take complete control of your website, steal customer data, inject malware, or use your server for their own purposes.

↗ View on NVD
CRITICAL CVE-2024-2409 9.8/10 · CVSS v3.1 ⏱ Immediate
MasterStudy LMS Plugin Allows Unauthorized Access Escalation

The MasterStudy LMS plugin doesn't properly verify user permissions when someone tries to register. An attacker could manipulate the registration process to gain admin-level access without proper credentials.

Impact: Attackers could become administrators of your site and modify content, access student data, or compromise your entire platform.

↗ View on NVD
CRITICAL CVE-2025-4973 9.8/10 · CVSS v3.1 ⏱ Immediate
Workreap Plugin Allows Users to Log In Without Password

The Workreap freelance marketplace plugin doesn't properly verify user identity during account verification. Attackers could bypass the login process entirely and access any user account.

Impact: Attackers could impersonate freelancers, clients, or administrators, accessing confidential project details, payments, and user information.

↗ View on NVD
CRITICAL CVE-2025-11456 9.8/10 · CVSS v3.1 ⏱ Immediate
HelpDesk Plugin Allows Dangerous File Uploads

The ELEX HelpDesk plugin doesn't check what type of files customers can upload when creating support tickets. This lets attackers upload executable files instead of legitimate documents.

Impact: Attackers could upload malicious files that execute on your server, giving them control over your website and customer support data.

↗ View on NVD
HIGH CVE-2023-2500 8.8/10 · CVSS v3.1 ⏱ Within 7 days
Go Pricing Plugin Vulnerable to Code Injection

The Go Pricing plugin improperly processes data from pricing table shortcodes. Authenticated users (even basic subscribers) could inject malicious code through this feature.

Impact: Attackers could execute arbitrary code, modify pricing tables, steal customer data, or inject malware visible to your site visitors.

↗ View on NVD

Additional Vulnerabilities (52 more)

Showing first 10 of 52. View all on NVD ↗

CVE IDSeverityScore PublishedDescription
CVE-2025-3404 HIGH 8.8 2025-04-19 The Download Manager plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the savePackage function in all versions up to, and …
CVE-2018-16308 HIGH 8.6 2018-09-01 The Ninja Forms plugin before 3.3.14.1 for WordPress allows CSV injection.
CVE-2021-25094 HIGH 8.1 2022-04-25 The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upl…
CVE-2024-7624 HIGH 8.1 2024-08-15 The Zephyr Project Manager plugin for WordPress is vulnerable to limited privilege escalation in all versions up to, and including, 3.3.101. This is due to the plugin not properly…
CVE-2011-4899 HIGH 7.5 2012-01-30 wp-admin/setup-config.php in the installation component in WordPress 3.3.1 and earlier does not ensure that the specified MySQL database service is appropriate, which allows remot…
CVE-2025-1764 HIGH 7.5 2025-03-14 The LoginPress | wp-login Custom Login Page Customizer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.3.1. This is due to…
CVE-2021-24511 HIGH 7.2 2021-09-20 The fetch_product_ajax functionality in the Product Feed on WooCommerce WordPress plugin before 3.3.1.0 uses a `product_id` POST parameter which is not properly sanitised, escaped…
CVE-2022-0889 HIGH 7.2 2022-03-23 The Ninja Forms - File Uploads Extension WordPress plugin is vulnerable to reflected cross-site scripting due to missing sanitization of the files filename parameter found in the …
CVE-2023-2607 HIGH 7.2 2023-06-09 The Multiple Page Generator Plugin for WordPress is vulnerable to time-based SQL Injection via the orderby and order parameters in versions up to, and including, 3.3.17 due to ins…
CVE-2024-1596 HIGH 7.2 2024-09-07 The Ninja Forms - File Uploads plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an uploaded file (e.g. RTX file) in all versions up to, and including, 3.3.16 …
Full Report Available

All 58 CVEs with AI explanations + fix guide

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How to Fix These Vulnerabilities

Conclusion

WordPress 3.3.1 is no longer safe to operate in 2025. With 5 critical vulnerabilities that allow attackers to completely take over your website, combined with 13 additional high-severity flaws, the risk of a breach is not a matter of 'if' but 'when.' The 44 websites currently running this version are sitting ducks for cybercriminals actively exploiting these known weaknesses.

Don't wait for a breach to force action. Update your WordPress installation today and implement the security measures outlined in this guide. For ongoing protection and peace of mind, use SiteRecipe.com's automated vulnerability scanning and security monitoring tools. Our platform continuously checks for outdated software, missing patches, and security misconfigurations—keeping your website safe while you focus on your business. Start your free security audit at SiteRecipe.com today.

Frequently Asked Questions

How serious are the vulnerabilities in WordPress 3.3.1?
Very serious. The 5 critical vulnerabilities allow attackers to execute arbitrary code on your server, upload malicious files, bypass authentication entirely, and steal sensitive data. These aren't theoretical risks—attackers actively exploit these known weaknesses against vulnerable sites.
Will updating WordPress to the latest version break my website?
While major version jumps can sometimes cause compatibility issues with older plugins or themes, the risks of staying on 3.3.1 far outweigh this possibility. Most updates work seamlessly, and our guide covers how to test compatibility before going live. A broken website is better than a hacked one.
Can I patch individual vulnerabilities without upgrading WordPress?
No. WordPress 3.3.1 receives zero official support and security patches. The only safe solution is to upgrade to a current, supported version of WordPress that receives regular security updates. This is the only way to close these vulnerability gaps permanently.
How do I know if my website has already been hacked?
Signs include unexpected admin accounts, strange files in your directories, redirects to malicious sites, defaced content, or your site being blacklisted by search engines. Use SiteRecipe.com's security scanner to detect compromised files and get a detailed vulnerability report immediately.
What should I do after updating WordPress?
Verify all plugins and themes work correctly, run a comprehensive security scan, change all passwords, review user accounts for unauthorized access, and implement ongoing security monitoring. SiteRecipe.com can automate this entire process with continuous vulnerability scanning and threat detection.

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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