CVE-2025-31920 is a high-severity SQL Injection vulnerability affecting the AmentoTech WP Guppy plugin for WordPress, up to version 4.3.3. The vulnerability arises from improper neutralization of special elements used in SQL commands (CWE-89), allowing an attacker with at least low privileges (PR:L) to inject malicious SQL code remotely (AV:N) without requiring user interaction (UI:N). The vulnerability impacts confidentiality primarily, with potential to disclose sensitive database information, and also affects availability to a lesser extent by possibly causing database errors or disruptions. The scope is changed (S:C), meaning exploitation can affect resources beyond the initially vulnerable component, potentially impacting the entire WordPress installation or connected systems. The CVSS 3.1 base score is 8.5, reflecting the high impact on confidentiality and the relatively low complexity of exploitation. No known exploits are currently reported in the wild, and no patches have been linked yet. This vulnerability is critical for websites using WP Guppy, as SQL Injection can lead to data leakage, unauthorized data access, or partial denial of service. The vulnerability requires at least some level of authenticated access, which may limit exposure but still poses a significant risk especially if low-privileged users or contributors can exploit it. The lack of user interaction requirement means automated exploitation is feasible once access is obtained.

For European organizations, this vulnerability poses a significant risk to WordPress-based websites using the WP Guppy plugin, which may be employed for various content management or interactive features. Successful exploitation could lead to unauthorized disclosure of sensitive customer or business data, violating GDPR and other data protection regulations, potentially resulting in legal penalties and reputational damage. The confidentiality impact is high, as attackers can extract database information. Integrity impact is low, but attackers might still manipulate queries to affect data indirectly. Availability impact is low but possible if database errors are triggered. Organizations relying on WP Guppy for customer-facing or internal portals could face service disruptions or data breaches. The requirement for authenticated access reduces the risk from anonymous attackers but does not eliminate it, especially if user accounts are compromised or if low-privileged users exist. European entities with e-commerce, governmental, or critical infrastructure websites using WordPress should prioritize assessment and remediation to avoid compliance issues and operational risks.

1. Immediate assessment of all WordPress installations to identify use of the WP Guppy plugin and its version. 2. Restrict access to authenticated users with minimal privileges to reduce exploitation risk. 3. Implement Web Application Firewall (WAF) rules specifically targeting SQL Injection patterns related to WP Guppy plugin endpoints. 4. Monitor logs for unusual database query patterns or failed SQL commands indicative of attempted injection. 5. Until an official patch is released, consider disabling or removing the WP Guppy plugin if feasible. 6. Conduct code review or penetration testing focusing on SQL query construction in WP Guppy to identify and remediate injection points. 7. Educate administrators and developers about the risk and ensure strong authentication and account management to prevent unauthorized access. 8. Prepare for rapid deployment of patches once available and maintain a vulnerability management process to track updates from AmentoTech.