CVE-2025-7536 is a critical SQL Injection vulnerability identified in version 1.0 of the Campcodes Sales and Inventory System, specifically within the /pages/receipt_credit.php file. The vulnerability arises from improper sanitization of the 'sid' parameter, which can be manipulated by an attacker to inject malicious SQL code. This flaw allows an unauthenticated remote attacker to execute arbitrary SQL commands on the backend database without requiring any user interaction or privileges. The injection can lead to unauthorized data access, modification, or deletion, potentially compromising the confidentiality, integrity, and availability of the system's data. Although the CVSS score is 6.9 (medium severity), the vulnerability's characteristics—remote exploitability without authentication and direct impact on database operations—indicate a significant threat. The exploit has been publicly disclosed, increasing the risk of exploitation. No official patches or mitigations have been linked yet, which means affected organizations must rely on immediate defensive measures. The vulnerability affects only version 1.0 of the Campcodes Sales and Inventory System, which is a niche product used for managing sales and inventory data, likely in small to medium enterprises.

For European organizations using Campcodes Sales and Inventory System 1.0, this vulnerability poses a serious risk. Exploitation could lead to unauthorized disclosure of sensitive sales and inventory data, financial information, and customer records, potentially violating GDPR and other data protection regulations. Data integrity could be compromised, leading to inaccurate inventory or sales records, disrupting business operations and causing financial losses. Availability may also be affected if attackers execute destructive SQL commands or cause database corruption. The public disclosure of the exploit increases the likelihood of attacks, especially targeting organizations that have not applied mitigations. Given the critical nature of sales and inventory data in supply chain and financial processes, exploitation could have cascading effects on business continuity and reputation. European companies in retail, wholesale, and manufacturing sectors using this system are particularly vulnerable.

Since no official patches are currently available, European organizations should immediately implement the following mitigations: 1) Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 'sid' parameter in /pages/receipt_credit.php. 2) Conduct a thorough code review and apply input validation and parameterized queries or prepared statements to sanitize the 'sid' parameter and any other user inputs. 3) Restrict database user privileges to the minimum necessary to limit the impact of potential injection attacks. 4) Monitor logs for unusual database queries or errors indicative of injection attempts. 5) Isolate the affected system from critical networks until mitigations are in place. 6) Engage with the vendor for official patches or updates and plan for immediate deployment once available. 7) Educate IT and security teams about the vulnerability and ensure incident response plans are updated to handle potential exploitation.