CVE-2025-6394 in Simple Online Hotel Reservation System
Summary
by MITRE • 06/21/2025
A vulnerability was found in code-projects Simple Online Hotel Reservation System 1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /add_reserve.php. The manipulation of the argument firstname leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well.
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Analysis
by VulDB Data Team • 06/26/2025
The CVE-2025-6394 vulnerability represents a critical sql injection flaw within the code-projects Simple Online Hotel Reservation System version 1.0, specifically impacting the /add_reserve.php component. This vulnerability stems from inadequate input validation and sanitization practices within the application's data handling mechanisms, creating a significant security risk for systems utilizing this hotel reservation platform. The flaw manifests when the firstname parameter is manipulated, allowing attackers to inject malicious sql commands directly into the database query execution flow. The remote exploitability of this vulnerability means that malicious actors can leverage this weakness from external network positions without requiring physical access to the target system, making it particularly dangerous for web-facing applications. Given that the exploit has been publicly disclosed and is potentially available for use, the window for defensive action has been significantly reduced, increasing the likelihood of real-world exploitation.
The technical implementation of this sql injection vulnerability places the application at risk of unauthorized data access, modification, or deletion through the manipulation of the firstname input field. Attackers can construct malicious sql payloads that bypass authentication mechanisms, extract sensitive customer information, or even gain administrative control over the reservation system. The vulnerability's classification as critical indicates that it could lead to complete system compromise or data breaches, particularly since the reservation system likely contains sensitive personal information including guest details, reservation records, and potentially payment information. The affected functionality within /add_reserve.php suggests that any new reservation submission process could be exploited, potentially allowing attackers to insert malicious data or manipulate existing records. This vulnerability aligns with CWE-89 which specifically addresses sql injection flaws, and represents a clear violation of secure coding practices that should prevent direct sql command injection through user-supplied inputs.
The operational impact of this vulnerability extends beyond immediate data compromise to include potential regulatory compliance violations, reputational damage, and financial losses for organizations using this reservation system. The public disclosure of the exploit increases the probability of widespread exploitation, particularly affecting small to medium businesses that may lack robust security monitoring capabilities. Organizations utilizing this system face risks including unauthorized access to customer databases, data exfiltration, and potential disruption of reservation services. The vulnerability's remote nature means that attackers can operate from any location with internet access, making it difficult to trace or defend against. Security professionals should consider this vulnerability in the context of the ATT&CK framework under the T1190 technique for exploitation of remote services, and T1071.1 for application layer protocol usage. The risk assessment should include potential for credential theft, privilege escalation, and persistent backdoor installation through the exploitation of this sql injection vulnerability.
Mitigation strategies should prioritize immediate patching or updating of the affected reservation system to address the sql injection vulnerability in the /add_reserve.php file. Organizations should implement proper input validation and parameterized queries to prevent sql injection attacks, ensuring that all user inputs are properly sanitized before database interaction. Network segmentation and intrusion detection systems should be deployed to monitor for exploitation attempts, while access controls should be strengthened to limit database access privileges. The implementation of web application firewalls and regular security audits can help identify similar vulnerabilities in other components of the system. Security teams should also conduct immediate vulnerability assessments to determine if other parameters within the reservation system are similarly affected, as the description suggests additional parameters may be vulnerable to the same attack vector. Regular security training for developers on secure coding practices and the implementation of automated code review tools can help prevent similar vulnerabilities in future development cycles.