Brazilian Market on WooCommerce Security & Risk Analysis

The static analysis for "woocommerce-extra-checkout-fields-for-brazil" v4.0.2 reveals a generally positive security posture. There are no identified attack surface entry points (AJAX handlers, REST API routes, shortcodes, or cron events) that are exposed without authentication or permission checks. Furthermore, the code demonstrates excellent output sanitization, with 100% of outputs properly escaped, and no dangerous functions, file operations, or external HTTP requests were detected. The absence of taint analysis findings further strengthens this impression, indicating no immediately apparent data handling vulnerabilities.

However, a significant concern lies in the handling of SQL queries. All four identified SQL queries are executed without the use of prepared statements, which leaves the plugin highly susceptible to SQL injection vulnerabilities. This is a critical oversight, as it bypasses the strong output escaping measures and presents a direct pathway for attackers to manipulate database operations. The complete lack of nonce and capability checks across all potential (though currently zero) entry points also represents a potential weakness, as these are standard security mechanisms for WordPress plugins that help prevent CSRF and unauthorized actions.

The vulnerability history is empty, which is a positive sign. It suggests that, to date, the plugin has not had any publicly disclosed security flaws. This, combined with the robust output escaping and absence of other common vulnerability patterns, indicates a developer who is likely attentive to security. Nevertheless, the presence of raw SQL queries without prepared statements is a severe flaw that overshadows these strengths and requires immediate attention.