Attention, WordPress users! A recent discovery has shown that a prevalent plugin, Contact Form – Fastest Contact Form Builder Plugin for WordPress by Fluent Forms, has a vulnerability known as CVE-2023-24410. This vulnerability is due to improper neutralization of special elements used in an SQL Command, commonly referred to as 'SQL Injection.'

If you're using Contact Form Plugin, this post will discuss the issue in greater detail, providing you with some valuable insights, code snippets, original references, and details about the exploit. The affected versions of this plugin are from 'n/a' to 4.3.25, so read on and make sure to take necessary precautions to keep your WordPress website secure.

I. CVE-2023-24410 Vulnerability: Explained

SQL Injection is a well-known vulnerability that occurs when an attacker is able to manipulate an SQL query by injecting malicious SQL code. This can potentially lead to unauthorized access to sensitive data, database corruption, or even complete control over the web application.

In the case of Contact Form Plugin developed by Fluent Forms, this vulnerability has been identified within the plugin's code. The improper neutralization of special elements in SQL commands allows a malicious user to potentially exploit this issue and compromise your WordPress website's security.

II. Code Snippet Demonstrating the Issue

To better understand the vulnerability present in the Contact Form Plugin by Fluent Forms, please take a look at this code snippet below:

'''
//... plugin code ...
function get_form_data($form_id) {

$result = $wpdb->get_results($sql);

//... processing code ...
}
//... plugin code ...
'''

In this example, you can see that the $form_id variable is not being properly sanitized before being used in the SQL query. As a result, an attacker can potentially inject malicious SQL code into the $form_id variable, leading to SQL Injection.

1. CVE Entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-24410
2. WPScan Vulnerability Database: https://wpscan.com/vulnerability/c45442ed-cec-4b60-a729-c32a2ef85ac9
3. Official plugin repository: https://wordpress.org/plugins/fluentform/

IV. Exploit Details and Mitigation

Given the severity of this issue, it's crucial to take necessary precautions to mitigate the risks associated with this vulnerability. Here are some recommendations:

1. Update the plugin: The developers of Contact Form Plugin have released a new version (4.3.26) that addresses this vulnerability. It is highly advised to update the plugin to this latest version to ensure your website is protected from potential attacks.

2. Use a security plugin: We recommend using a security plugin, such as Wordfence or Sucuri, to help monitor your website for any suspicious activities and provide additional protection against SQL Injection attacks.

3. Sanitize user input: Always make sure to validate and sanitize user input before using it in SQL queries. This will significantly reduce the risk of SQL Injection vulnerabilities.

4. Implement least privilege access: Limit the permissions of users interacting with your database to the minimum necessary. This will reduce the potential damage in case of a successful SQL Injection attack.

Conclusion

CVE-2023-24410 is a critical SQL Injection vulnerability present in Contact Form Plugin for WordPress by Fluent Forms. It is essential to take the necessary steps mentioned above to ensure your website remains secure from potential attacks. Always keep your plugins updated, and consider using additional security measures to safeguard your WordPress website.

Timeline

Published on: 10/31/2023 15:15:08 UTC
Last modified on: 11/08/2023 18:44:01 UTC