CVE-2025-6421 in Simple Online Hotel Reservation System
Summary
by MITRE • 06/22/2025
A vulnerability was found in code-projects Simple Online Hotel Reservation System 1.0. It has been rated as critical. This issue affects some unknown processing of the file /admin/add_account.php. The manipulation of the argument name/admin_id leads to sql injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 06/26/2025
The vulnerability identified as CVE-2025-6421 represents a critical sql injection flaw within the code-projects Simple Online Hotel Reservation System version 1.0. This vulnerability resides in the administrative component of the application, specifically within the /admin/add_account.php file which handles user account management functions. The flaw manifests when the application processes the name/admin_id parameter without adequate input validation or sanitization, creating an exploitable condition that allows malicious actors to manipulate database queries through crafted input. The vulnerability has been publicly disclosed and is actively being used in the wild, making it particularly dangerous for organizations that have not yet patched their systems.
The technical implementation of this sql injection vulnerability stems from improper parameter handling within the application's backend processing logic. When the name/admin_id argument is submitted through the administrative interface, the system fails to properly escape or validate the input before incorporating it into database queries. This creates a direct pathway for attackers to inject malicious sql commands that can manipulate the underlying database structure. The vulnerability operates at the application layer and can be exploited remotely without requiring local system access or authentication, making it highly accessible to threat actors. According to CWE classification, this represents a classic CWE-89 sql injection vulnerability that falls under the category of input validation and representation flaws.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with potentially complete control over the application's database backend. Successful exploitation could enable unauthorized users to extract sensitive information including guest reservation details, administrative credentials, and potentially financial data. The remote exploitation capability means that attackers can target vulnerable systems from anywhere on the internet without requiring physical access or network proximity. This vulnerability directly impacts the confidentiality, integrity, and availability of the hotel reservation system, potentially leading to service disruption, data breaches, and compliance violations. Organizations using this software are at risk of exposure to advanced persistent threats that could leverage this vulnerability as an initial access vector.
Mitigation strategies for CVE-2025-6421 should prioritize immediate patching of the affected application version to address the sql injection vulnerability in the /admin/add_account.php file. Organizations should implement proper input validation and parameterized queries to prevent similar issues in the future, aligning with ATT&CK technique T1190 for exploitation of remote services. Network segmentation and access controls should be strengthened to limit administrative access to only necessary personnel, while comprehensive monitoring should be implemented to detect anomalous database access patterns. Additionally, regular security assessments and penetration testing should be conducted to identify and remediate similar vulnerabilities across the entire application stack, ensuring compliance with industry standards such as NIST SP 800-53 and ISO 27001 security requirements.