CVE-2026-14763: SQL Injection in Hotel and Tourism Reservation 1.0 – Urgent Patch Required

Technical summary

CVE-2026-14763 is a remote SQL injection vulnerability in the Tour Reservations Page component (/admin/tour_reserves.php) of Hotel and Tourism Reservation 1.0. The vulnerability stems from insufficient input validation on the 'tour' parameter, enabling an attacker to manipulate SQL queries executed by the application. The attack vector is network-accessible, requires no authentication, and no user interaction—making it straightforward to exploit. The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output) and CWE-89 (SQL Injection), reflecting both the root cause and the resulting impact.

Business impact

Successful exploitation could result in unauthorized access to reservation databases, customer personally identifiable information (PII), payment details, and booking records. An attacker could modify, delete, or exfiltrate critical business data, leading to regulatory compliance violations (GDPR, PCI-DSS if payment data is exposed), reputational damage, loss of customer trust, and potential financial liability. Depending on the attacker's intent, the hotel or tourism company could face service disruption, data breach notification obligations, and operational downtime during remediation.

Affected systems

The vulnerability specifically affects code-projects Hotel and Tourism Reservation version 1.0. Any deployment of this software version is potentially vulnerable. Organizations using this application should assume compromise risk until patches are applied. Earlier or later versions have not been evaluated in the published advisory; vendors and products information was not available in the source data—verify with the vendor or review their security advisories for the complete affected version matrix.

Exploitability

This vulnerability carries a CVSS v3.1 score of 7.3 (HIGH severity) with a network attack vector, low attack complexity, no privilege requirements, and no user interaction needed. The exploit code has already been published, significantly lowering the barrier to exploitation. Attackers can leverage public proof-of-concept code or readily craft payloads to target vulnerable instances. The absence of authentication and the simplicity of SQL injection attacks mean that both opportunistic and targeted threat actors can exploit this quickly. However, this vulnerability is not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog, though public exploit availability suggests monitoring for its inclusion.

Remediation

Prioritize updating to a patched version of Hotel and Tourism Reservation—verify the vendor's security advisory at code-projects for the recommended version number and release date. Until patching is feasible, implement strong access controls restricting administrative page access to trusted IP ranges or VPNs, disable or isolate the tour reservations feature if it is not in active use, and deploy a Web Application Firewall (WAF) with SQL injection detection rules. Additionally, conduct a security audit of all user inputs in the application and implement parameterized queries (prepared statements) throughout the codebase to prevent similar issues.

Patch guidance

Contact code-projects directly or review their security advisory portal for the specific patch version addressing CVE-2026-14763. Apply patches to all instances of Hotel and Tourism Reservation 1.0 in your environment. Test patches in a non-production environment first to ensure compatibility with your deployment. Monitor application logs for any suspicious activity or failed SQL queries that might indicate exploitation attempts before and after patching. Establish a change management process to track patch status across all affected systems.

Detection guidance

Monitor web server and application logs for SQL injection patterns in the /admin/tour_reserves.php endpoint, particularly unusual characters (single quotes, semicolons, SQL keywords like UNION, SELECT, DROP) in the 'tour' parameter. Use a WAF or intrusion detection system (IDS) configured with SQL injection signatures. Implement database activity monitoring to detect anomalous queries or unauthorized data access. Conduct periodic vulnerability scans to identify unpatched instances. Review authentication and access logs for unauthorized administrative page access.

Why prioritize this

This vulnerability demands urgent remediation due to its HIGH CVSS score (7.3), lack of authentication requirements, published exploit availability, and direct threat to sensitive business and customer data. The combination of remote exploitability and SQL injection impact on a business-critical reservation system makes it a prime target for both cybercriminals and opportunistic attackers. Organizations should treat this as a priority-one issue, especially if the application is internet-facing or accessible to untrusted networks.

Risk score, explained

The CVSS v3.1 score of 7.3 reflects HIGH severity driven by: network attack vector (no local access required), low attack complexity (straightforward SQL injection), no authentication requirement, no user interaction needed, and impact to confidentiality, integrity, and availability of the underlying data. While the scope is unchanged (single affected component), the unrestricted access and data exposure potential elevate this to a significant business risk. The published exploit and absence from CISA's KEV catalog does not diminish risk—it indicates the vulnerability is not yet widely weaponized at scale, but the public code ensures rapid adoption by attackers.

Frequently asked questions