Custom Shipping Methods for WooCommerce – Create Weight based Shipping, Conditional Shipping, Table Rate Shipping and much more Security & Risk Analysis

The plugin "custom-shipping-methods-for-woocommerce" v1.9.1 exhibits a generally strong security posture based on the provided static analysis. The absence of dangerous functions, raw SQL queries, file operations, and external HTTP requests, coupled with the use of prepared statements for all SQL queries, indicates good development practices in these areas. The low number of entry points and the complete lack of unprotected ones are also positive signs. The vulnerability history being completely clean suggests a well-maintained and secure plugin over time.

However, there are areas for improvement and potential underlying risks. The complete absence of nonce checks is a significant concern. While there are no unprotected AJAX handlers or REST API routes, the presence of shortcodes without any security checks introduces a potential attack vector if user-supplied data is processed or displayed within these shortcodes. The lack of capability checks is another weakness, as it implies that all users, regardless of their role, might be able to trigger functionalities associated with these shortcodes.

Despite the lack of critical or high-severity issues in the static analysis and vulnerability history, the identified weaknesses, particularly the missing nonce and capability checks, could be exploited in conjunction with other vulnerabilities or through creative attacks targeting the shortcode functionality. Therefore, while the plugin is likely secure against many common threats, these specific oversights warrant attention.