CVE-2025-7838 is a critical SQL Injection vulnerability identified in version 1.0 of the Campcodes Online Movie Theater Seat Reservation System. The vulnerability exists in the /admin/manage_seat.php file, specifically through manipulation of the 'ID' parameter. An attacker can remotely exploit this flaw without requiring authentication or user interaction, by injecting malicious SQL code into the vulnerable parameter. This can lead to unauthorized access to the backend database, allowing attackers to read, modify, or delete sensitive data related to seat reservations, user information, or administrative controls. The CVSS 4.0 base score is 6.9, indicating a medium severity level, with an attack vector of network (remote), low attack complexity, and no privileges or user interaction needed. The impact on confidentiality, integrity, and availability is limited but present, as the vulnerability allows partial compromise of data (VC:L, VI:L, VA:L). Although no known exploits are currently observed in the wild, the public disclosure of the exploit code increases the risk of exploitation. The lack of available patches or mitigation guidance from the vendor further elevates the threat. This vulnerability highlights the critical need for secure coding practices, especially input validation and parameterized queries, in web applications managing sensitive transactional data such as seat reservations and user management.

For European organizations using the Campcodes Online Movie Theater Seat Reservation System, this vulnerability poses a significant risk to the confidentiality and integrity of customer and operational data. Exploitation could lead to unauthorized data disclosure, manipulation of reservation records, or disruption of service availability, potentially damaging customer trust and causing financial losses. Given the nature of the system, attackers could also manipulate seat availability, leading to overbooking or denial of service to legitimate customers. Additionally, compromised administrative interfaces could be leveraged to pivot into broader network environments, increasing the risk of further compromise. The impact is particularly relevant for theaters and entertainment venues in Europe that rely on this system for online bookings, as they may face regulatory compliance issues under GDPR if personal data is exposed. The public availability of exploit code increases the urgency for European organizations to address this vulnerability promptly to avoid reputational damage and operational disruptions.

1. Immediate implementation of input validation and sanitization on all user-supplied parameters, especially the 'ID' parameter in /admin/manage_seat.php, to prevent injection of malicious SQL code. 2. Refactor the application code to use parameterized queries or prepared statements instead of dynamic SQL concatenation. 3. Restrict access to the /admin/manage_seat.php interface through network-level controls such as VPNs, IP whitelisting, or strong authentication mechanisms. 4. Conduct a comprehensive security audit of the entire application to identify and remediate other potential injection points. 5. Monitor application logs for unusual or suspicious SQL query patterns indicative of exploitation attempts. 6. Engage with the vendor or development team to obtain or develop patches addressing this vulnerability. 7. Implement Web Application Firewall (WAF) rules to detect and block SQL injection attempts targeting this endpoint. 8. Educate administrative users on security best practices and the importance of reporting anomalies promptly. 9. Regularly back up database contents to enable recovery in case of data tampering or loss.