CVE-2026-3396 Scanner

WCAPF WooCommerce Ajax Product Filter is a popular plugin used by online retailers utilizing WooCommerce on WordPress to enhance their product filtering capabilities. This plugin is deployed by website administrators and developers looking to streamline the user experience in online shopping environments. Its primary function is to allow customers to filter products through various criteria, making it easier for them to navigate large inventories. The plugin is regularly updated to add features and improve functionality, ensuring seamless integration with other WooCommerce components. However, maintaining the security and stability of the plugin is crucial due to its impact on user experience and data handling processes.

The SQL Injection vulnerability detected in WCAPF WooCommerce Ajax Product Filter arises from inadequate input validation on the 'post-author' parameter. This allows unauthenticated attackers to execute arbitrary SQL queries on the database through manipulated HTTP requests. SQL Injection is a critical security flaw that can lead to unauthorized data exposure and potential data manipulation. By exploiting this vulnerability, attackers could access sensitive information, such as user credentials and private customer data, without authorization. Preventing SQL Injection typically requires parameterized queries and robust input sanitation mechanisms.

Technical details surrounding this SQL Injection vulnerability involve the 'filter_post_author' parameter, which is poorly sanitized, allowing for time-based SQL query execution. Attackers craft requests that utilize the SLEEP function in SQL, effectively verifying the presence of the vulnerability by observing request delays. Successful exploitation demonstrates the vulnerability's impact by extracting database responses indirectly through timing discrepancies. This points to a likely lack of the proper escape mechanism required to sanitize user inputs, exposing the database to externally influenced SQL logic.

Exploitation of this vulnerability can lead to significant risks, including unauthorized access to sensitive data stored within the website's database. This could result in data breaches affecting both the business and its customers, such as exposure of personal information and financial records. Moreover, the compromised data integrity might allow attackers to manipulate store content or inject malicious logic. This kind of exposure can severely damage a business's reputation, lead to financial losses, and result in legal ramifications if customer data protection regulations are violated.

REFERENCES

• https://patchstack.com/database/vulnerability/wordpress-wcapf-woocommerce-ajax-product-filter-plugin-4-2-3-unauthenticated-time-based-sql-injection-vulnerability
• https://nvd.nist.gov/vuln/detail/CVE-2026-3396