CVE-2025-12913: Responsive Hotel Site SQL Injection Flaw

CVE-2025-12913 Overview

A SQL injection vulnerability has been identified in Fabian Responsive Hotel Site version 1.0. The flaw exists in the /admin/roomdel.php file, where the ID parameter is not properly sanitized before being used in SQL queries. This allows attackers to manipulate database queries by injecting malicious SQL code through the vulnerable parameter. The vulnerability can be exploited remotely over the network, and a proof-of-concept exploit has been publicly disclosed.

Critical Impact

Attackers with administrative access can exploit this SQL injection vulnerability to read, modify, or delete sensitive data from the backend database, potentially compromising guest information, reservation details, and administrative credentials.

Affected Products

• Fabian Responsive Hotel Site 1.0
• Code-Projects Responsive Hotel Site implementations using the affected roomdel.php component

Discovery Timeline

• 2025-11-08 - CVE-2025-12913 published to NVD
• 2025-11-17 - Last updated in NVD database

Technical Details for CVE-2025-12913

Vulnerability Analysis

This vulnerability is classified as CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), specifically manifesting as a SQL injection flaw. The vulnerable endpoint /admin/roomdel.php accepts an ID parameter that is directly incorporated into database queries without proper input validation or parameterized query usage.

The attack requires administrative privileges (high privilege requirement), but once an attacker has access to the admin panel, they can leverage this vulnerability to extract sensitive information from the database, modify existing records, or potentially escalate their access within the application. The network-based attack vector means that any authenticated administrator accessing the system remotely could potentially exploit or be exploited through this flaw.

Root Cause

The root cause of this vulnerability is improper input validation in the roomdel.php script. The ID parameter is passed directly into SQL queries without sanitization, escaping, or the use of prepared statements. This allows specially crafted input containing SQL metacharacters to alter the intended query logic.

Attack Vector

The attack is executed remotely over the network by an authenticated administrator. An attacker would navigate to the room deletion functionality and manipulate the ID parameter value to include SQL injection payloads. The injected code is then executed by the database server, allowing unauthorized data access or manipulation.

The vulnerability is exploited by appending SQL syntax to the ID parameter in requests to /admin/roomdel.php. For example, an attacker could inject UNION-based payloads to extract data from other database tables, or use boolean-based blind injection techniques to enumerate database contents. Technical details and proof-of-concept information can be found in the GitHub CVE Report.

Detection Methods for CVE-2025-12913

Indicators of Compromise

• Unusual SQL syntax or error messages in web server logs related to /admin/roomdel.php
• Requests to roomdel.php containing SQL keywords such as UNION, SELECT, OR 1=1, or encoded variants
• Database query logs showing malformed or unexpected queries originating from the room deletion functionality
• Anomalous data access patterns or bulk data retrieval from the hotel management database

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the ID parameter
• Monitor HTTP access logs for suspicious requests to /admin/roomdel.php containing injection payloads
• Enable database query logging and alert on queries with unusual syntax or structure
• Deploy intrusion detection signatures targeting SQL injection attempts against PHP applications

Monitoring Recommendations

• Configure real-time alerting for multiple failed or malformed requests to administrative endpoints
• Review database audit logs for unauthorized data access or privilege escalation attempts
• Monitor for unusual administrative session activity, particularly around room management functions
• Implement anomaly detection for database query patterns that deviate from normal application behavior

How to Mitigate CVE-2025-12913

Immediate Actions Required

• Restrict access to the /admin/ directory to trusted IP addresses only
• Implement input validation on the ID parameter to accept only numeric values
• Review and audit all administrative endpoints for similar SQL injection vulnerabilities
• Consider taking the application offline until proper remediation is applied

Patch Information

No official vendor patch has been released for this vulnerability at the time of publication. Organizations using Fabian Responsive Hotel Site 1.0 should implement the workarounds below and monitor the Code Projects Resource for updates. Additional vulnerability details are available through VulDB #331631.

Workarounds

• Implement prepared statements with parameterized queries in roomdel.php to prevent SQL injection
• Add server-side input validation to ensure the ID parameter contains only integer values
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Implement the principle of least privilege for database accounts used by the application
• Restrict administrative panel access using IP allowlisting or VPN requirements

# Configuration example - Apache .htaccess to restrict admin access
<Directory "/var/www/html/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>