CVE-2025-14091 identifies a SQL injection vulnerability in the TrippWasTaken PHP-Guitar-Shop product, affecting the /product.php file responsible for rendering the Product Details Page. The vulnerability stems from insufficient sanitization and validation of the 'ID' parameter, which is used directly in SQL queries. This allows an unauthenticated remote attacker to inject malicious SQL code, potentially extracting, modifying, or deleting data from the backend database. The product follows a rolling release model, making it difficult to pinpoint affected versions beyond the specific commit hash provided. The vendor has not issued any patches or responses, and exploit code has been publicly disclosed, increasing the risk of exploitation. The CVSS 4.0 score of 6.9 reflects a medium severity, with network attack vector, no required privileges or user interaction, and partial impacts on confidentiality, integrity, and availability. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely. The lack of vendor response and patch availability means organizations must implement mitigations independently. This vulnerability could be leveraged to compromise sensitive customer data, disrupt e-commerce operations, or facilitate further attacks within affected environments.

For European organizations using the PHP-Guitar-Shop platform, this vulnerability poses a significant risk to the confidentiality and integrity of their customer and transactional data. Successful exploitation could lead to unauthorized data disclosure, data tampering, or deletion, undermining customer trust and potentially violating GDPR requirements. Availability impacts, while partial, could disrupt e-commerce services, leading to financial losses and reputational damage. The public availability of exploit code increases the likelihood of attacks, especially against organizations that have not implemented mitigations. Given the widespread use of PHP-based e-commerce solutions in Europe, particularly in countries with mature online retail markets, the threat could affect a broad range of small to medium-sized businesses. The lack of vendor patches and the rolling release model complicate timely remediation, increasing exposure duration. Additionally, attackers could use this vulnerability as a foothold for lateral movement or further compromise within corporate networks.

Organizations should immediately audit their PHP-Guitar-Shop installations to identify affected versions or commits. Since no official patches are available, implement strict input validation and sanitization on the 'ID' parameter in /product.php, preferably using parameterized queries or prepared statements to prevent SQL injection. Employ Web Application Firewalls (WAFs) with rules targeting SQL injection patterns to provide an additional protective layer. Monitor web server and database logs for suspicious query patterns or repeated failed attempts to exploit the vulnerability. Restrict database user privileges to the minimum necessary to limit the impact of potential exploitation. Consider isolating the e-commerce application in a segmented network zone to reduce lateral movement risks. Engage in proactive threat hunting and update incident response plans to address potential exploitation scenarios. Finally, maintain regular backups of critical data to enable recovery in case of data corruption or deletion.