CVE-2025-51660 is a SQL injection vulnerability identified in SemCms version 5.0, specifically affecting the 'lgid' parameter within the SEMCMS_Products.php script. SQL injection vulnerabilities occur when untrusted user input is improperly sanitized and directly included in SQL queries, allowing an attacker to manipulate the database query. In this case, the 'lgid' parameter can be exploited to inject malicious SQL commands. This can lead to unauthorized access to the backend database, data leakage, data modification, or even complete compromise of the underlying database server. The vulnerability is present in a content management system (CMS) product, which is typically used to manage website content and e-commerce platforms. The absence of a CVSS score and lack of known exploits in the wild suggest that this vulnerability is newly disclosed and not yet widely exploited. However, the potential impact of SQL injection vulnerabilities is generally high due to their ability to compromise confidentiality, integrity, and availability of data. The lack of patch links indicates that a fix may not yet be publicly available, increasing the urgency for affected organizations to implement mitigations. Since the vulnerability is tied to a specific parameter in a PHP file, it is likely that the issue stems from insufficient input validation or parameterized query usage in the application code. Attackers exploiting this vulnerability could extract sensitive data, modify or delete records, or escalate their privileges within the application or database environment.

For European organizations using SemCms v5.0, this vulnerability poses a significant risk to the confidentiality and integrity of their data. Organizations operating e-commerce sites or managing sensitive customer information through SemCms could face data breaches, leading to regulatory non-compliance under GDPR and reputational damage. The ability to manipulate database queries could also allow attackers to disrupt service availability by deleting or corrupting data, impacting business continuity. Given the critical nature of SQL injection vulnerabilities, exploitation could lead to unauthorized access to personal data, financial information, or intellectual property. This is particularly concerning for sectors such as finance, healthcare, and government agencies within Europe, which handle sensitive data and are subject to strict data protection regulations. The lack of known exploits currently reduces immediate risk, but the public disclosure increases the likelihood of future exploitation attempts, especially if patches are not promptly applied or mitigations implemented.

European organizations should immediately audit their use of SemCms v5.0 and identify any instances of the SEMCMS_Products.php script. Until an official patch is released, organizations should implement the following mitigations: 1) Apply input validation and sanitization on the 'lgid' parameter to ensure only expected data types and formats are accepted. 2) Employ parameterized queries or prepared statements in the database access code to prevent injection. 3) Use web application firewalls (WAFs) with rules specifically designed to detect and block SQL injection attempts targeting the 'lgid' parameter. 4) Conduct thorough code reviews and penetration testing focused on SQL injection vectors within SemCms. 5) Monitor logs for suspicious database query patterns or unusual application behavior that could indicate exploitation attempts. 6) Restrict database user privileges to the minimum necessary to limit the impact of any successful injection. 7) Plan for rapid deployment of official patches once they become available from the vendor. These steps go beyond generic advice by focusing on the specific vulnerable parameter and the context of the CMS application.