CVE-2025-51626 identifies an SQL injection vulnerability in the pss.sale.com 1.0 software, specifically targeting the 'id' parameter within the userfiles/php/cancel_order.php endpoint. SQL injection occurs when untrusted input is improperly sanitized, allowing attackers to inject malicious SQL commands that the backend database executes. This can lead to unauthorized data retrieval, data modification, or even full system compromise depending on database privileges. The vulnerability was reserved in mid-2025 and published in early 2026, but no CVSS score or patches are currently available, and no active exploitation has been reported. The lack of authentication or user interaction requirements suggests that exploitation could be straightforward if the endpoint is exposed. The affected software appears to be an e-commerce or order management system, which typically handles sensitive customer and transaction data. Exploiting this vulnerability could allow attackers to cancel or manipulate orders, extract customer information, or corrupt order records. The absence of detailed affected versions beyond 1.0 and no known exploits limits the ability to fully assess the scope, but the presence of an SQL injection in such a critical function is a significant risk. Organizations using this software should urgently audit the affected endpoint, implement input validation and parameterized queries, and monitor logs for suspicious activity. Given the potential for data breaches and operational impact, this vulnerability demands prompt attention.

For European organizations, the impact of CVE-2025-51626 could be substantial, particularly for those in retail, e-commerce, and logistics sectors relying on pss.sale.com 1.0 for order processing. Exploitation could lead to unauthorized access to customer data, including personal and payment information, violating GDPR and other data protection regulations, resulting in legal and financial penalties. Data integrity could be compromised by unauthorized order cancellations or modifications, disrupting business operations and customer trust. Availability might also be affected if attackers manipulate database queries to cause service disruptions or denial of service. The reputational damage from a breach could be severe, especially in competitive markets. Additionally, the lack of known patches increases the window of exposure. Organizations may face increased scrutiny from regulators and customers if such vulnerabilities are exploited. The threat is heightened in countries with large e-commerce markets and strict data privacy laws, where compliance and operational continuity are critical.

1. Immediately audit the userfiles/php/cancel_order.php endpoint and all input handling related to the 'id' parameter to identify and remediate unsafe SQL query constructions. 2. Implement parameterized queries or prepared statements to prevent SQL injection attacks, ensuring that user inputs are never directly concatenated into SQL commands. 3. Apply strict input validation and sanitization on all user-supplied data, enforcing type, length, and format constraints. 4. Restrict database user privileges to the minimum necessary, preventing the exploited account from performing destructive operations beyond its scope. 5. Monitor application and database logs for unusual query patterns or repeated failed attempts targeting the vulnerable endpoint. 6. If possible, deploy Web Application Firewalls (WAFs) with rules designed to detect and block SQL injection attempts targeting the affected endpoint. 7. Engage with the software vendor or development team to obtain or develop patches and update the software promptly once available. 8. Conduct security awareness training for developers and administrators on secure coding practices and vulnerability management. 9. Review and enhance incident response plans to quickly address potential exploitation events. 10. Consider network segmentation and access controls to limit exposure of the vulnerable application to untrusted networks.