CVE-2026-2553 identifies a SQL injection vulnerability in the tushar-2223 Hotel-Management-System, specifically within the /home.php component that handles HTTP POST requests. The vulnerability arises from improper sanitization of user-supplied input in the Name and Email parameters, allowing attackers to inject malicious SQL code. This flaw can be exploited remotely without authentication or user interaction, enabling attackers to execute arbitrary SQL queries against the backend database. The continuous delivery model with rolling releases complicates precise version identification, but all versions up to the specified commit hash are affected. The vendor has not responded to disclosure attempts, and no official patches or updates are available. The CVSS 4.0 score of 5.3 reflects a medium severity, considering network attack vector, low complexity, no privileges or user interaction required, but limited scope and impact on confidentiality, integrity, and availability. Although no known exploits in the wild have been reported, a public exploit has been released, increasing the likelihood of attacks. The vulnerability can lead to unauthorized data access, data modification, or deletion, potentially compromising customer personal data and hotel operational data. Given the nature of hotel management systems, this could result in significant privacy violations, financial loss, and reputational damage. The lack of vendor response and patch availability necessitates immediate mitigation efforts by affected organizations.

For European organizations, especially those in the hospitality sector using the tushar-2223 Hotel-Management-System, this vulnerability poses a significant risk to data confidentiality, integrity, and availability. Exploitation could lead to unauthorized disclosure of sensitive customer information such as names, emails, booking details, and payment data, violating GDPR and other privacy regulations. Data manipulation or deletion could disrupt hotel operations, causing financial losses and service outages. The public availability of an exploit increases the risk of automated attacks and widespread exploitation. Additionally, compromised systems could be leveraged for further attacks within the corporate network or used as a foothold for ransomware or data exfiltration campaigns. The medium severity score indicates moderate but non-trivial risk, warranting urgent attention. The continuous delivery model and lack of vendor patches complicate remediation, increasing exposure time. European hotels with high volumes of customer data and online booking systems are particularly vulnerable to reputational damage and regulatory penalties if exploited.

1. Immediately implement input validation and sanitization on all user-supplied data, especially the Name and Email fields in /home.php, to prevent SQL injection. 2. Refactor database queries to use parameterized statements or prepared queries rather than string concatenation. 3. Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection payloads targeting the vulnerable endpoints. 4. Conduct thorough code audits and penetration testing focused on injection flaws across the application. 5. Isolate the hotel management system network segment and restrict database access to only necessary services and IP addresses. 6. Monitor logs for unusual database query patterns or failed injection attempts to detect exploitation attempts early. 7. Engage with the vendor or community to track any forthcoming patches or updates, and plan for rapid deployment once available. 8. Consider temporary mitigation by disabling or restricting access to the vulnerable /home.php POST handler if feasible without disrupting critical operations. 9. Educate staff on the risks and signs of exploitation to enhance incident response readiness. 10. Ensure regular backups of critical data with offline copies to enable recovery in case of data tampering or loss.