MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor Vulnerability – Unauthenticated Double-Extension Arbitrary File Upload – CVE-2023-0714 | WordPress Plugin Vulnerability Report

Q: What is the MetForm vulnerability, and how does it affect my WordPress site?

What is the MetForm vulnerability, and how does it affect my WordPress site? The MetForm vulnerability is an unauthenticated double-extension arbitrary file upload flaw that affects versions up to 3.2.4 of the plugin. This issue allows attackers to upload files with malicious extensions disguised by benign extensions, which can potentially lead to remote code execution. If your site is running a vulnerable version, it could be at risk of being compromised by unauthorized users who could gain control over your website. To protect your site, it’s essential to update the MetForm plugin to version 3.3.0 or later. The update resolves the vulnerability by tightening file validation processes, preventing unauthorized file uploads. Regular updates are crucial for maintaining the security of your website.

Q: How can I tell if my site has been affected by this vulnerability?

How can I tell if my site has been affected by this vulnerability? To determine if your site has been affected, you should check your server's file system for any suspicious files, particularly those with double extensions like "file.jpg.php". These files may indicate an attempt to exploit the vulnerability. Additionally, reviewing your server logs for unusual activity can help identify if someone has tried to upload malicious files to your site. If you find any suspicious files or notice irregular activity, it’s important to take immediate action. This includes removing the malicious files, changing all passwords, and possibly restoring your site from a clean backup. Consulting with a security professional can also help assess the extent of any damage.

Q: What should I do if my site has been compromised?

What should I do if my site has been compromised? If your site has been compromised, the first step is to update the MetForm plugin to the latest version, 3.3.0 or later, to close the vulnerability. Next, remove any malicious files that may have been uploaded and check your site for other signs of tampering. It’s also crucial to change all passwords associated with your site, including those for admin, FTP, and database access. After securing your site, consider performing a full security audit to ensure no other vulnerabilities exist. It might also be wise to implement additional security measures, such as a web application firewall, to prevent future attacks. Regular monitoring and backups will further protect your site from future issues.

Q: What risks does this vulnerability pose if I don’t update the plugin?

What risks does this vulnerability pose if I don’t update the plugin? Failing to update the MetForm plugin leaves your website vulnerable to attacks that can result in unauthorized file uploads. If exploited, this vulnerability could allow an attacker to execute malicious code on your server, potentially leading to a full site takeover. This could result in data breaches, defacement, or the installation of malicious software that could harm your site visitors. The consequences of such an attack could be severe, including loss of customer trust, legal liabilities, and significant financial damage. Keeping your plugin updated is a critical step in preventing these risks and ensuring the security of your website.

Q: Is it safe to continue using the MetForm plugin after updating?

Is it safe to continue using the MetForm plugin after updating? Yes, it is safe to continue using the MetForm plugin after updating to version 3.3.0 or later. The update addresses the vulnerability by improving the security of the file upload process, preventing unauthorized uploads that could lead to remote code execution. By keeping the plugin up to date, you can safely continue using its features without compromising your site’s security. However, it’s always important to stay vigilant and monitor your site for any unusual activity. Regular updates and good security practices will help you maintain a secure website environment.

Q: Can I use an alternative plugin instead of MetForm?

Can I use an alternative plugin instead of MetForm? While updating MetForm to the latest version makes it safe to use, you can choose to use an alternative plugin if you prefer. There are several form-building plugins available for WordPress that offer similar functionality. It’s important to choose a plugin that is regularly updated and has a strong track record of security. Before switching, ensure that the new plugin meets your site’s needs and is compatible with your existing setup. Migrating forms and data to a new plugin might require some effort, but it can be worthwhile if you find a solution that better aligns with your security requirements.

Q: How often should I update my WordPress plugins to avoid vulnerabilities?

How often should I update my WordPress plugins to avoid vulnerabilities? You should update your WordPress plugins as soon as updates are available, especially when they include security patches. Regular updates are crucial because they often address newly discovered vulnerabilities that could be exploited by attackers. Delaying updates increases the risk of your site being compromised. Enabling automatic updates for plugins is a good practice, as it ensures that your site stays protected without requiring constant manual intervention. Regularly checking for updates and applying them promptly is one of the best ways to maintain a secure website.

Q: What other security measures can I take to protect my WordPress site?

What other security measures can I take to protect my WordPress site? In addition to keeping your plugins updated, there are several other measures you can take to protect your WordPress site. Using strong, unique passwords for all user accounts and enabling two-factor authentication (2FA) are key steps to prevent unauthorized access. Regular backups are also essential, as they allow you to restore your site quickly in the event of a breach. Installing a security plugin that offers features like malware scanning, firewall protection, and login monitoring can further enhance your site’s security. Additionally, limiting the number of users with administrative privileges and regularly reviewing user activity can help minimize potential threats.

Q: Why do vulnerabilities like this one keep occurring in WordPress plugins?

Why do vulnerabilities like this one keep occurring in WordPress plugins? Vulnerabilities in WordPress plugins occur because plugins are complex software that interacts with various parts of your website. As new features are added and updates are made, there is always a risk of introducing new vulnerabilities. Additionally, the evolving nature of cybersecurity threats means that older code can become susceptible to new types of attacks. Plugin developers often respond quickly to vulnerabilities by releasing patches, but staying on top of these updates is crucial. Regular monitoring and proactive security measures are essential to protect your site from emerging threats.

Q: Should I be concerned about the history of previous vulnerabilities in the MetForm plugin?

Should I be concerned about the history of previous vulnerabilities in the MetForm plugin? While the MetForm plugin has had 22 previous vulnerabilities since April 2022, the developers have consistently addressed these issues with timely updates. This history highlights the importance of keeping your plugins updated to the latest versions. Regular updates ensure that known vulnerabilities are patched, reducing the risk of your site being compromised. However, it’s always a good idea to stay informed about the security posture of the plugins you use. Regularly reviewing security reports and considering the overall track record of a plugin can help you make informed decisions about your site’s security. If you have concerns, consider using additional security measures or exploring alternative plugins.

By Your WP Guy | August 16, 2024

Plugin Name: MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor

Key Information:

Software Type: Plugin
Software Slug: metform
Software Status: Active
Software Author: xpeedstudio
Software Downloads: 3,995,704
Active Installs: 400,000
Last Updated: August 19, 2024
Patched Versions: 3.3.0
Affected Versions: <= 3.2.4

Vulnerability Details:

Name: Metform Elementor Contact Form Builder <= 3.2.4
Type: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE: CVE-2023-0714
CVSS Score: 8.1
Publicly Published: August 16, 2024
Researcher: Ram - Wordfence
Description: The Metform Elementor Contact Form Builder for WordPress is vulnerable to Arbitrary File Upload due to insufficient file type validation in versions up to, and including, 3.2.4. This flaw allows unauthenticated visitors to perform a "double extension" attack, where they upload files containing a malicious extension that ends with a benign extension, which could lead to remote code execution in certain configurations.

Summary:

The MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor plugin for WordPress has a vulnerability in versions up to and including 3.2.4 that allows unauthenticated users to upload files with a malicious extension masked by a benign extension. This vulnerability could enable remote code execution under certain configurations. This vulnerability has been patched in version 3.3.0.

Detailed Overview:

The MetForm Elementor Contact Form Builder plugin has been found to have a significant security flaw, categorized as an Unauthenticated Double-Extension Arbitrary File Upload vulnerability. This issue, discovered by researcher Ram from Wordfence, arises due to insufficient validation of file types during the upload process. Specifically, attackers can exploit this flaw by using a "double extension" tactic, where a file that appears to have a safe extension (such as .jpg) actually contains a malicious extension (like .php) that could allow for remote code execution on the server, depending on how the site is configured.

This vulnerability is particularly dangerous because it requires no authentication, meaning any visitor to the site could potentially exploit it. The CVSS score of 8.1 reflects the high impact this vulnerability could have, particularly in cases where the server configuration makes remote code execution possible. To mitigate this risk, it is crucial for all users of the MetForm plugin to update to the latest version, 3.3.0, where the issue has been resolved.

Advice for Users:

Immediate Action: Users should update their MetForm plugin to version 3.3.0 or later as soon as possible to protect their site from the risk of arbitrary file uploads and potential remote code execution.
Check for Signs of Vulnerability: Review your site's file system for any suspicious files, particularly those with double extensions (e.g., file.jpg.php), and monitor your server logs for unusual activity that could indicate an attempted exploitation.
Alternate Plugins: While a patch is available, users may consider alternative form-building plugins if they are concerned about the history of security issues or need additional features.
Stay Updated: Regularly updating all plugins and your WordPress core is essential to prevent vulnerabilities from being exploited. Enable automatic updates where possible to ensure your site remains secure.

Conclusion:

The quick response from the developers of the MetForm plugin to address this vulnerability highlights the importance of timely updates. Ensuring that your WordPress site is running version 3.3.0 or later is critical to maintaining its security. Regular maintenance and staying informed about potential vulnerabilities are essential practices for safeguarding your website.

References:

Detailed Report:

In the fast-paced world of managing a website, particularly for small business owners, it’s easy for tasks like updating plugins to fall through the cracks. However, neglecting these updates can leave your website exposed to serious security threats. A recent vulnerability discovered in the MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor plugin serves as a stark reminder of the importance of keeping your site up to date.

This vulnerability, identified as an unauthenticated double-extension arbitrary file upload (CVE-2023-0714), allows attackers to upload files with malicious extensions disguised by a benign extension. This could lead to remote code execution on your server, depending on how your site is configured, potentially giving attackers full control over your site. With over 400,000 active installs, the risk is significant, and if your site is using a version of MetForm up to and including 3.2.4, you could be vulnerable.

If you’re concerned about your website’s security, or if you’re unsure whether your site has been affected by this or any other vulnerabilities, we’re here to help. In this post, we’ll provide a detailed overview of the MetForm vulnerability, explain the risks it poses, and guide you on how to protect your website. Don’t wait until it’s too late—take steps today to secure your website and ensure it remains a safe and reliable tool for your business.

Risks and Potential Impacts of the Vulnerability:

This vulnerability poses a significant risk because it allows attackers to upload potentially harmful files to your website without needing to log in. By using a "double extension" tactic, an attacker could disguise a malicious file as something innocuous, such as an image, but actually execute code on your server. Depending on your server configuration, this could lead to a full site takeover, data theft, or other malicious activities.

The high CVSS score of 8.1 reflects the severe impact this vulnerability could have if exploited. Given that this attack requires no authentication, any visitor to your site could potentially upload malicious files, making it a critical issue to address.

How to Remediate the Vulnerability:

Immediate Action: Update your MetForm plugin to version 3.3.0 or later. This version includes the necessary patches to prevent the exploitation of this vulnerability. Updating your plugin as soon as possible is crucial to protect your website from potential attacks.
Check for Signs of Vulnerability: Review your website’s file system for any unusual files, particularly those with double extensions like "file.jpg.php". Also, monitor your server logs for any suspicious activity that could indicate an attempted exploitation.
Consider Alternate Plugins: While the patch provided in version 3.3.0 addresses the issue, some users might want to explore alternative form-building plugins, especially if they are concerned about the plugin’s history of vulnerabilities or are looking for additional features.
Stay Updated: Regularly updating all your plugins, including the WordPress core, is vital to prevent vulnerabilities from being exploited. Enabling automatic updates can help ensure your site remains secure without requiring constant manual intervention.

Overview of Previous Vulnerabilities:

It’s important to note that the MetForm plugin has had 22 previous vulnerabilities since April 23, 2022. While the developers have been proactive in releasing patches to address these issues, the recurring nature of vulnerabilities emphasizes the need for regular updates and vigilance. By staying informed and taking immediate action when vulnerabilities are disclosed, you can significantly reduce the risk of your website being compromised.

Conclusion:

The discovery of this vulnerability in the MetForm plugin is a critical reminder of the importance of staying on top of security updates. For small business owners who may not have the time to manage these updates, it’s essential to consider tools or services that can automate the process and ensure your site remains secure. Regular maintenance, timely updates, and a proactive approach to website security are crucial in protecting your business’s online presence from potential threats.

Staying Secure

Staying on top of WordPress security can feel overwhelming for small business owners without dedicated IT staff. At Your WP Guy, we exist to shoulder that burden for you. Our WordPress experts can fully audit, secure, maintain and support your site - so you can focus on growing your business with peace of mind.

Don't tackle security risks alone. Let us help you assess any impact from this vulnerability, update your plugins, and implement ongoing maintenance to avoid future threats. We treat your website like it's our own - because we know how critical it is for reaching your customers.

Get in touch for a free consultation today on making WordPress security stress-free. Call 678-995-5169 or book a call here. Our knowledgeable team is ready to help you safeguard your online presence.

MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor Vulnerability – Unauthenticated Double-Extension Arbitrary File Upload – CVE-2023-0714 | WordPress Plugin Vulnerability Report FAQs

What is the MetForm vulnerability, and how does it affect my WordPress site?

The MetForm vulnerability is an unauthenticated double-extension arbitrary file upload flaw that affects versions up to 3.2.4 of the plugin. This issue allows attackers to upload files with malicious extensions disguised by benign extensions, which can potentially lead to remote code execution. If your site is running a vulnerable version, it could be at risk of being compromised by unauthorized users who could gain control over your website.

To protect your site, it’s essential to update the MetForm plugin to version 3.3.0 or later. The update resolves the vulnerability by tightening file validation processes, preventing unauthorized file uploads. Regular updates are crucial for maintaining the security of your website.

How can I tell if my site has been affected by this vulnerability?

To determine if your site has been affected, you should check your server's file system for any suspicious files, particularly those with double extensions like "file.jpg.php". These files may indicate an attempt to exploit the vulnerability. Additionally, reviewing your server logs for unusual activity can help identify if someone has tried to upload malicious files to your site.

If you find any suspicious files or notice irregular activity, it’s important to take immediate action. This includes removing the malicious files, changing all passwords, and possibly restoring your site from a clean backup. Consulting with a security professional can also help assess the extent of any damage.

What should I do if my site has been compromised?

If your site has been compromised, the first step is to update the MetForm plugin to the latest version, 3.3.0 or later, to close the vulnerability. Next, remove any malicious files that may have been uploaded and check your site for other signs of tampering. It’s also crucial to change all passwords associated with your site, including those for admin, FTP, and database access.

After securing your site, consider performing a full security audit to ensure no other vulnerabilities exist. It might also be wise to implement additional security measures, such as a web application firewall, to prevent future attacks. Regular monitoring and backups will further protect your site from future issues.

What risks does this vulnerability pose if I don’t update the plugin?

Failing to update the MetForm plugin leaves your website vulnerable to attacks that can result in unauthorized file uploads. If exploited, this vulnerability could allow an attacker to execute malicious code on your server, potentially leading to a full site takeover. This could result in data breaches, defacement, or the installation of malicious software that could harm your site visitors.

The consequences of such an attack could be severe, including loss of customer trust, legal liabilities, and significant financial damage. Keeping your plugin updated is a critical step in preventing these risks and ensuring the security of your website.

Is it safe to continue using the MetForm plugin after updating?

Yes, it is safe to continue using the MetForm plugin after updating to version 3.3.0 or later. The update addresses the vulnerability by improving the security of the file upload process, preventing unauthorized uploads that could lead to remote code execution. By keeping the plugin up to date, you can safely continue using its features without compromising your site’s security.

However, it’s always important to stay vigilant and monitor your site for any unusual activity. Regular updates and good security practices will help you maintain a secure website environment.

Can I use an alternative plugin instead of MetForm?

While updating MetForm to the latest version makes it safe to use, you can choose to use an alternative plugin if you prefer. There are several form-building plugins available for WordPress that offer similar functionality. It’s important to choose a plugin that is regularly updated and has a strong track record of security.

Before switching, ensure that the new plugin meets your site’s needs and is compatible with your existing setup. Migrating forms and data to a new plugin might require some effort, but it can be worthwhile if you find a solution that better aligns with your security requirements.

How often should I update my WordPress plugins to avoid vulnerabilities?

You should update your WordPress plugins as soon as updates are available, especially when they include security patches. Regular updates are crucial because they often address newly discovered vulnerabilities that could be exploited by attackers. Delaying updates increases the risk of your site being compromised.

Enabling automatic updates for plugins is a good practice, as it ensures that your site stays protected without requiring constant manual intervention. Regularly checking for updates and applying them promptly is one of the best ways to maintain a secure website.

What other security measures can I take to protect my WordPress site?

In addition to keeping your plugins updated, there are several other measures you can take to protect your WordPress site. Using strong, unique passwords for all user accounts and enabling two-factor authentication (2FA) are key steps to prevent unauthorized access. Regular backups are also essential, as they allow you to restore your site quickly in the event of a breach.

Installing a security plugin that offers features like malware scanning, firewall protection, and login monitoring can further enhance your site’s security. Additionally, limiting the number of users with administrative privileges and regularly reviewing user activity can help minimize potential threats.

Why do vulnerabilities like this one keep occurring in WordPress plugins?

Vulnerabilities in WordPress plugins occur because plugins are complex software that interacts with various parts of your website. As new features are added and updates are made, there is always a risk of introducing new vulnerabilities. Additionally, the evolving nature of cybersecurity threats means that older code can become susceptible to new types of attacks.

Plugin developers often respond quickly to vulnerabilities by releasing patches, but staying on top of these updates is crucial. Regular monitoring and proactive security measures are essential to protect your site from emerging threats.

Should I be concerned about the history of previous vulnerabilities in the MetForm plugin?

While the MetForm plugin has had 22 previous vulnerabilities since April 2022, the developers have consistently addressed these issues with timely updates. This history highlights the importance of keeping your plugins updated to the latest versions. Regular updates ensure that known vulnerabilities are patched, reducing the risk of your site being compromised.

However, it’s always a good idea to stay informed about the security posture of the plugins you use. Regularly reviewing security reports and considering the overall track record of a plugin can help you make informed decisions about your site’s security. If you have concerns, consider using additional security measures or exploring alternative plugins.

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Posted in Security, Vulnerabilities and tagged arbitrary file upload, CVE-2023-0714, Cybersecurity, double extension attack, Metform vulnerability, Plugin Updates, small business website, Website Maintenance, WordPress plugin security, wordpress security

Plugin Name: MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor

Key Information:

Vulnerability Details:

Summary:

Detailed Overview:

Advice for Users:

Conclusion:

References:

Detailed Report:

Risks and Potential Impacts of the Vulnerability:

How to Remediate the Vulnerability:

Overview of Previous Vulnerabilities:

Conclusion:

Staying Secure

MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor Vulnerability – Unauthenticated Double-Extension Arbitrary File Upload – CVE-2023-0714 | WordPress Plugin Vulnerability Report FAQs

What is the MetForm vulnerability, and how does it affect my WordPress site?

How can I tell if my site has been affected by this vulnerability?

What should I do if my site has been compromised?

What risks does this vulnerability pose if I don’t update the plugin?

Is it safe to continue using the MetForm plugin after updating?

Can I use an alternative plugin instead of MetForm?

How often should I update my WordPress plugins to avoid vulnerabilities?

What other security measures can I take to protect my WordPress site?

Why do vulnerabilities like this one keep occurring in WordPress plugins?

Should I be concerned about the history of previous vulnerabilities in the MetForm plugin?

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