CVE-2026-102379 in BuildKit Plugin
Summary
by MITRE • 10/01/2026
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in VillaTheme BuildKit – Product Builder for WooCommerce – Custom PC Builder woo-product-builder allows Blind SQL Injection.This issue affects BuildKit – Product Builder for WooCommerce – Custom PC Builder: from n/a through 1.0.28.
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Analysis
by VulDB Data Team • 10/01/2026
The identified security flaw represents a classic instance of improper neutralization of special elements used in an SQL command, commonly referred to as SQL injection. This vulnerability is present within the VillaTheme BuildKit plugin for WooCommerce, specifically affecting versions ranging from n/a through 1.0.28. The core technical issue stems from the application's failure to properly sanitize or validate user-supplied input before incorporating it into backend database queries. In a typical web architecture involving WordPress and WooCommerce, plugins often interact with the MySQL database to retrieve product configurations, pricing data, or custom PC builder specifications. When these interactions are constructed using string concatenation rather than parameterized queries or prepared statements, an attacker can inject malicious SQL syntax that alters the intended logic of the query.
The specific manifestation of this vulnerability is described as a blind SQL injection. Unlike error-based injections where database errors reveal information directly to the user interface, blind SQL injection requires the attacker to infer data based on the application's response behavior or timing differences. For instance, an attacker might submit a payload that causes a delay in page loading if a certain condition is true, thereby allowing them to extract sensitive data bit by bit without triggering visible error messages. This technique makes detection more difficult for standard web application firewalls and automated scanners but remains highly effective against developers who do not implement rigorous input validation protocols. The lack of immediate feedback does not diminish the severity; rather, it necessitates a more sophisticated approach from threat actors aiming to exfiltrate data.
The operational impact of this vulnerability is severe due to the nature of the data typically stored in WooCommerce databases. These systems contain customer personal information, including names and addresses, as well as payment details which may be partially exposed depending on storage practices. Furthermore, product configurations for custom PC builders often involve complex relational data structures that could reveal proprietary business logic or inventory secrets if accessed by unauthorized parties. An attacker leveraging this blind SQL injection vector can potentially read arbitrary database contents, modify existing records to alter prices or stock levels, and in worst-case scenarios, execute administrative commands on the underlying database server. This compromises not only confidentiality but also integrity and availability of the e-commerce platform's data assets.
From a classification perspective, this vulnerability aligns with CWE-89: Improper Neutralization of Special Elements used in an SQL Command. It is further contextualized within the MITRE ATT&CK framework under techniques such as T1059 which covers command and script interpretation, specifically when leveraging database interfaces for data exfiltration or lateral movement. The attack vector typically involves remote exploitation via HTTP requests where specific parameters related to product building options are manipulated. This highlights a critical gap in input validation strategies within the plugin's codebase during version 1.0.28 and earlier releases.
Mitigation requires immediate action from both developers and site administrators. For users of the affected software, the primary recommendation is to update VillaTheme BuildKit – Product Builder for WooCommerce – Custom PC Builder to a patched version released after 1.0.28 where this vulnerability has been addressed through code remediation. If an updated version is not immediately available or applicable, temporary mitigations should include implementing strict input validation on all user-facing fields that interact with the database, utilizing web application firewalls to filter known SQL injection patterns in HTTP requests, and ensuring that database accounts used by the WordPress installation adhere to the principle of least privilege. Regular security audits and code reviews focusing on data access layers are essential to prevent similar vulnerabilities from persisting or emerging in future updates.