CVE-2025-4064 is a vulnerability identified in ScriptAndTools' Online-Travling-System version 1.0, specifically affecting the /admin/viewenquiry.php file. The issue stems from improper access controls, allowing unauthorized remote attackers to access administrative functionalities without authentication or user interaction. The vulnerability is classified as critical in the description but carries a CVSS 4.0 score of 6.9 (medium severity) with the vector AV:N/AC:L/AT:N/PR:N/UI:N, indicating it is remotely exploitable over the network without any privileges or user interaction. The improper access control means that sensitive administrative pages or data could be accessed or manipulated by attackers, potentially exposing confidential customer inquiries or administrative functions. Although no known exploits are currently in the wild, the public disclosure of the vulnerability increases the risk of exploitation. The lack of authentication requirements and the ability to exploit remotely make this vulnerability particularly concerning for organizations using this software. The Online-Travling-System is presumably a web-based travel management or booking system, and the admin interface likely contains sensitive operational data and controls. The vulnerability could lead to unauthorized data disclosure, manipulation of booking or inquiry data, and potentially further compromise of the system if attackers leverage this access for lateral movement or privilege escalation. The absence of patches or mitigation links suggests that organizations must implement compensating controls until an official fix is released.

For European organizations using ScriptAndTools Online-Travling-System 1.0, this vulnerability poses a significant risk to confidentiality and integrity of sensitive travel-related data. Unauthorized access to the admin interface could expose customer personal information, travel itineraries, payment details, and internal business inquiries. This exposure could lead to privacy violations under GDPR, resulting in regulatory penalties and reputational damage. Furthermore, attackers could manipulate booking or inquiry data, disrupting business operations and causing financial losses. The vulnerability could also serve as an entry point for further attacks within the network, potentially compromising other systems. Given the critical nature of travel and hospitality sectors in Europe, exploitation could impact service availability indirectly through operational disruptions. The medium CVSS score reflects the lack of direct impact on availability but highlights the ease of exploitation and potential for significant data breaches. Organizations relying on this software for customer-facing or internal travel management functions should consider the risk high due to the sensitivity of the data involved and the potential regulatory consequences in Europe.

1. Immediate mitigation should include restricting network access to the /admin/viewenquiry.php endpoint using web application firewalls (WAFs) or network-level access controls to allow only trusted IP addresses or VPN connections. 2. Implement strong authentication and authorization mechanisms at the web server or application layer, such as multi-factor authentication (MFA) and role-based access controls (RBAC), to prevent unauthorized access. 3. Conduct thorough logging and monitoring of access to administrative endpoints to detect and respond to suspicious activity promptly. 4. If possible, disable or isolate the vulnerable admin interface until a patch is available. 5. Engage with ScriptAndTools for official patches or updates and prioritize their deployment once released. 6. Perform a comprehensive security review of the Online-Travling-System deployment, including penetration testing focused on access control weaknesses. 7. Educate internal staff on the risks and ensure incident response plans include scenarios involving unauthorized access to administrative systems. These steps go beyond generic advice by focusing on immediate network-level restrictions, enhanced authentication, and proactive monitoring tailored to the specific vulnerable component.