Fraud Blocker Update UserPro Plugin to Version 5.1.9 for Critical Security Fix

UserPro Plugin Users Alert Update to Version 5.1.9 for Security Fix


Critical Vulnerability in UserPro Plugin: A Wake-Up Call for WordPress Security

In the ever-evolving landscape of digital security, vulnerabilities in WordPress plugins can pose significant risks to website owners and administrators. Recently, a critical vulnerability was discovered and patched in the UserPro plugin, a popular community and user profile plugin for WordPress. This incident underscores the importance of robust security measures and timely updates to safeguard your WordPress site. At WP-Firewall, we are committed to providing comprehensive security solutions to protect your WordPress installations from such threats.

Understanding the UserPro Plugin and Its Vulnerability

The UserPro plugin, developed by DeluxeThemes, is a premium WordPress plugin with over 20,000 sales. It is widely used for creating front-end user profiles and community sites, offering features like customizable login and registration forms, and social connect integration. However, a critical vulnerability was discovered in this plugin, specifically an unauthenticated account takeover vulnerability, which could allow malicious actors to change the password of any user under certain conditions.

The Technical Details

The vulnerability resides in the `userpro_process_form` function, which is responsible for processing various user actions, including password changes. The function is hooked to the `wp_ajax_nopriv_userpro_process_form` action, making it accessible to unauthenticated users. Here’s a simplified breakdown of the issue:

1. User Key Generation: When a user requests a password change, a secret key is generated and stored in the user’s metadata.

2. Password Change Process: The function checks if the provided secret key matches the stored hashed key using the `wp_check_password` function.

3. Exploitation: If the secret key matches, the function updates the user’s password. However, due to a flaw in the logic, any unauthenticated user could exploit this process to change the password of any user with a secret key set.

This vulnerability was assigned CVE-2024-35700 and was fixed in version 5.1.9 of the UserPro plugin.

The Importance of Timely Updates and Security Measures

The UserPro vulnerability highlights the critical need for regular updates and proactive security measures. At WP-Firewall, we emphasize the importance of keeping your WordPress plugins and themes up-to-date to mitigate potential security risks. Here’s how we can help:

1. Automated Security Scans

Our WP-Firewall plugin offers automated security scans to detect vulnerabilities in your WordPress installation. By regularly scanning your site, we can identify and address potential threats before they can be exploited.

2. Real-Time Threat Detection

WP-Firewall provides real-time threat detection, monitoring your site for suspicious activity and blocking malicious attempts. This includes protection against unauthorized access, SQL injections, and other common attack vectors.

3. Comprehensive Firewall Protection

Our firewall solution offers comprehensive protection against a wide range of threats. By filtering incoming traffic and blocking malicious requests, we ensure that your WordPress site remains secure.

4. Vulnerability Patching

In addition to detecting vulnerabilities, WP-Firewall can automatically apply patches to known issues. This ensures that your plugins and themes are always up-to-date with the latest security fixes.

5. Security Audits and Reports

We provide detailed security audits and reports, giving you insights into the security posture of your WordPress site. Our reports highlight potential vulnerabilities and recommend actionable steps to enhance your site’s security.

Best Practices for WordPress Security

While WP-Firewall provides robust security measures, it’s essential to follow best practices to further protect your WordPress site. Here are some recommendations:

1. Regular Backups

Ensure that you regularly back up your WordPress site. In the event of a security breach, having a recent backup can help you quickly restore your site to its previous state.

2. Strong Passwords

Encourage users to create strong, unique passwords. Implementing password policies and using password managers can help enforce this practice.

3. Two-Factor Authentication (2FA)

Enable two-factor authentication for all user accounts. This adds an extra layer of security by requiring users to provide a second form of verification in addition to their password.

4. Limit Login Attempts

Limit the number of login attempts to prevent brute force attacks. WP-Firewall includes features to block IP addresses after a specified number of failed login attempts.

5. Regular Plugin and Theme Updates

Keep all plugins and themes up-to-date. Developers frequently release updates to address security vulnerabilities, so staying current is crucial.

6. Secure Hosting Environment

Choose a reputable hosting provider that offers robust security features. A secure hosting environment can significantly reduce the risk of attacks.


The recent vulnerability in the UserPro plugin serves as a stark reminder of the importance of WordPress security. At WP-Firewall, we are dedicated to providing the tools and services needed to protect yourWordPress site from potential threats. By leveraging our comprehensive security solutions, you can ensure that your site remains safe and secure, even in the face of emerging vulnerabilities.

The Patch and Its Implementation

The developers of UserPro responded swiftly to the discovered vulnerability, releasing version 5.1.9 to address the issue. The patch involved additional validation steps to ensure that the new password is not the same as the current one and that the user ID is correctly verified before updating the password. This crucial fix prevents unauthenticated users from exploiting the password change process.

How WP-Firewall Can Help

WP-Firewall is designed to provide an additional layer of security for your WordPress site, complementing the built-in security features of WordPress and third-party plugins. Here’s how WP-Firewall can help protect your site from similar vulnerabilities:

1. Advanced Threat Intelligence

WP-Firewall leverages advanced threat intelligence to stay ahead of potential security risks. Our team continuously monitors the latest security advisories and vulnerabilities, ensuring that our firewall rules are up-to-date and effective against new threats.

2. Customizable Security Policies

With WP-Firewall, you can customize security policies to fit the specific needs of your site. Whether you need to enforce stricter login policies or block specific IP ranges, our plugin provides the flexibility to tailor security measures to your requirements.

3. Malware Scanning and Removal

In addition to protecting against vulnerabilities, WP-Firewall includes malware scanning and removal capabilities. Regular scans help detect and eliminate malicious code that may have infiltrated your site, keeping your WordPress installation clean and secure.

4. User Activity Monitoring

WP-Firewall tracks user activity on your site, providing detailed logs of login attempts, password changes, and other critical actions. This visibility allows you to quickly identify and respond to suspicious behavior, preventing potential security breaches.

5. Security Notifications

Stay informed with real-time security notifications. WP-Firewall alerts you to potential threats and important updates, ensuring that you can take immediate action to protect your site.

Case Study: Preventing Exploitation with WP-Firewall

Consider a scenario where a vulnerability similar to the one found in UserPro is discovered in another popular WordPress plugin. With WP-Firewall in place, the following steps would help mitigate the risk:

1. Immediate Detection: WP-Firewall’s automated scans would detect the vulnerability as soon as it is publicly disclosed or identified in the plugin’s code.

2. Real-Time Alerts: You would receive an immediate notification about the vulnerability, including details on the affected plugin and recommended actions.

3. Automated Patch Application: If the plugin developer releases a patch, WP-Firewall can automatically apply the update to your site, ensuring that the vulnerability is quickly addressed.

4. Enhanced Monitoring: WP-Firewall’s user activity monitoring would track any attempts to exploit the vulnerability, allowing you to take further action if necessary.

Key Takeaways

The critical vulnerability in the UserPro plugin serves as a powerful reminder of the importance of proactive WordPress security. By keeping your plugins and themes up-to-date and implementing robust security measures, you can protect your site from potential threats.

At WP-Firewall, we are committed to providing the tools and expertise needed to secure your WordPress site. Our comprehensive security solutions, including automated scans, real-time threat detection, and customizable security policies, ensure that your site remains protected against emerging vulnerabilities.

Don’t wait for the next security breach to take action. Strengthen your WordPress security with WP-Firewall today and enjoy peace of mind knowing that your site is safeguarded against potential threats.

Call to Action

Ready to enhance your WordPress security? [Get started with WP-Firewall](https://wp-firewall) and take the first step towards a more secure WordPress site. Sign up for our free trial and experience the benefits of comprehensive security protection.

For more information on our services and pricing, visit our [website](https://wp-firewall) or contact our support team. Stay informed and stay secure with WP-Firewall.

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