CVE-2025-9426 is a SQL Injection vulnerability identified in version 1.0 of the itsourcecode Online Tour and Travel Management System, specifically affecting the /package.php file. The vulnerability arises from improper sanitization or validation of the 'subcatid' parameter, which is susceptible to malicious input manipulation. An attacker can exploit this flaw remotely without requiring authentication or user interaction, by injecting crafted SQL commands into the 'subcatid' parameter. This can lead to unauthorized access to the backend database, allowing the attacker to read, modify, or delete sensitive data, potentially compromising the confidentiality, integrity, and availability of the system's data. The vulnerability has a CVSS 4.0 base score of 6.9, categorized as medium severity, reflecting the ease of remote exploitation without privileges and the potential for limited impact on confidentiality, integrity, and availability. Although no public exploits are currently known to be actively used in the wild, the exploit code has been made publicly available, increasing the risk of opportunistic attacks. The affected product is a niche online tour and travel management system, which may be deployed by travel agencies or related service providers to manage bookings, packages, and customer data. The lack of available patches or updates from the vendor increases the urgency for affected organizations to implement mitigations or consider alternative solutions.

For European organizations, especially those in the travel and tourism sector using the itsourcecode Online Tour and Travel Management System version 1.0, this vulnerability poses a significant risk. Exploitation could lead to unauthorized disclosure of customer personal data, booking details, and payment information, potentially violating GDPR requirements and resulting in regulatory penalties. Data integrity could be compromised, leading to manipulation of booking information or financial fraud. Availability impacts could disrupt business operations, causing reputational damage and financial losses. Given the remote exploitability without authentication, attackers could target these systems from anywhere, increasing the threat landscape. The medium severity rating suggests that while the vulnerability is serious, it may not lead to full system compromise or widespread disruption, but the sensitive nature of tourism-related data elevates the risk profile. Organizations relying on this software should consider the potential for targeted attacks, especially during peak travel seasons when system availability and data accuracy are critical.

Since no official patches or updates are currently available from the vendor, European organizations should implement immediate compensating controls. These include: 1) Employing Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 'subcatid' parameter; 2) Conducting thorough input validation and sanitization at the application or proxy level to reject malicious inputs; 3) Restricting database user permissions to the minimum necessary to limit the impact of any successful injection; 4) Monitoring application logs and network traffic for unusual query patterns or error messages indicative of injection attempts; 5) Considering temporary removal or disabling of the vulnerable functionality if feasible; 6) Planning for migration to a patched or alternative tour and travel management system that follows secure coding practices; 7) Educating staff about the risks and signs of exploitation attempts. Additionally, organizations should ensure regular backups of critical data and test restoration procedures to minimize downtime in case of an incident.