CVE-2025-31056 is a critical SQL Injection vulnerability (CWE-89) found in the Techspawn WhatsCart plugin for WooCommerce, which provides WhatsApp-based abandoned cart recovery, order notifications, chat box, and OTP functionalities. This vulnerability affects versions up to 1.1.0 and allows an unauthenticated attacker to inject malicious SQL commands via unsanitized input fields. The CVSS 3.1 score of 9.3 reflects the high severity, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction needed (UI:N). The scope is changed (S:C), indicating that exploitation can affect resources beyond the vulnerable component. The impact is high on confidentiality (C:H), with no impact on integrity (I:N) and low impact on availability (A:L). This means attackers can extract sensitive data from the backend database, potentially including customer information, order details, and other sensitive business data, without modifying or deleting data. The vulnerability arises from improper neutralization of special elements in SQL commands, allowing attackers to manipulate queries executed by the plugin. Although no known exploits are currently reported in the wild, the ease of exploitation and critical impact make this a significant threat to WooCommerce stores using this plugin. The lack of available patches at the time of publication increases the urgency for mitigation.

European organizations using WooCommerce with the WhatsCart plugin are at significant risk of data breaches due to this vulnerability. The exposure of sensitive customer data, including personally identifiable information (PII) and order histories, can lead to regulatory non-compliance under GDPR, resulting in heavy fines and reputational damage. The ability to extract confidential data without authentication makes this a high-risk attack vector for e-commerce businesses. Additionally, attackers could leverage the extracted data for further phishing or fraud campaigns targeting European customers. The low impact on availability suggests that denial-of-service is less likely, but the confidentiality breach alone is critical. Given the widespread use of WooCommerce in Europe, especially among small and medium-sized enterprises (SMEs) that may lack advanced security measures, the threat is substantial. The vulnerability also poses risks to supply chain integrity if attackers gain insights into business operations or customer relationships.

1. Immediate removal or deactivation of the WhatsCart plugin until a security patch is released by Techspawn. 2. Monitor official Techspawn channels and Patchstack advisories for updates and apply patches promptly once available. 3. Implement Web Application Firewall (WAF) rules specifically designed to detect and block SQL injection attempts targeting WooCommerce plugins, including WhatsCart. 4. Conduct thorough input validation and sanitization on all user-supplied data fields related to WhatsCart functionalities, if custom modifications are possible. 5. Restrict database user permissions for the WooCommerce application to the minimum necessary, avoiding excessive privileges that could be exploited. 6. Enable detailed logging and monitoring of database queries and web application activities to detect suspicious behavior early. 7. Educate development and security teams about the risks of SQL injection and ensure secure coding practices are followed for any custom plugin development. 8. Consider alternative plugins with a strong security track record for WhatsApp integration until this vulnerability is resolved.