CVE-2025-52820 is a high-severity SQL Injection vulnerability (CWE-89) affecting the WooCommerce Point Of Sale (POS) plugin developed by infosoftplugin. This vulnerability arises from improper neutralization of special elements in SQL commands, allowing an attacker with low privileges (PR:L) to inject malicious SQL code remotely (AV:N) without requiring user interaction (UI:N). The vulnerability impacts all versions of the plugin up to 1.4. The CVSS 3.1 base score is 8.5, indicating a high severity with a scope change (S:C), meaning the vulnerability can affect resources beyond the initially vulnerable component. The attack vector is network-based, and exploitation requires only low privileges, which could be achieved by an authenticated user with limited access. Successful exploitation can lead to high confidentiality impact (C:H), such as unauthorized disclosure of sensitive data from the backend database, while integrity impact is none (I:N) and availability impact is low (A:L). Although no known exploits are currently reported in the wild, the vulnerability poses a significant risk due to the widespread use of WooCommerce POS in e-commerce environments. The lack of available patches at the time of publication increases the urgency for mitigation. The vulnerability could be exploited by crafting specially crafted SQL queries that manipulate the backend database, potentially exposing customer data, payment information, or business-sensitive records. Given the critical role of POS systems in retail and e-commerce, this vulnerability could be leveraged for data breaches or to facilitate further attacks within the victim's network.

For European organizations, this vulnerability presents a substantial risk, especially for retailers and businesses relying on WooCommerce POS for in-person sales integration with their online stores. Exploitation could lead to unauthorized access to sensitive customer data, including payment details, which would have severe implications under GDPR regulations, potentially resulting in heavy fines and reputational damage. The confidentiality breach could undermine customer trust and lead to financial losses. Additionally, the scope change means attackers might leverage this vulnerability to pivot and compromise other parts of the network, increasing the overall risk exposure. The low availability impact suggests limited disruption to service, but the confidentiality impact alone is critical. European businesses with integrated e-commerce and physical sales channels are particularly vulnerable, as attackers could exploit this flaw remotely over the internet. The absence of known exploits currently provides a window for proactive defense, but the high CVSS score and ease of exploitation warrant immediate attention.

Organizations should immediately audit their WooCommerce POS installations to identify affected versions (up to 1.4). Since no patches are currently available, temporary mitigations include restricting access to the POS plugin interfaces to trusted IP addresses or VPNs to reduce exposure. Implementing Web Application Firewalls (WAF) with custom rules to detect and block SQL injection patterns targeting the POS endpoints can help mitigate exploitation attempts. Additionally, review and tighten user privilege assignments to ensure minimal necessary access, as exploitation requires low privileges. Monitoring logs for unusual SQL query patterns or failed injection attempts is critical for early detection. Organizations should also prepare to apply patches promptly once released by the vendor. Conducting a thorough security assessment of the entire e-commerce infrastructure to identify and remediate other potential injection points is advisable. Finally, ensure that database backups are current and tested to enable recovery in case of data compromise.