CVE-2025-8378: Hotel Reservation System SQLi Vulnerability

CVE-2025-8378 Overview

A critical SQL Injection vulnerability has been identified in Campcodes Online Hotel Reservation System version 1.0. The vulnerability exists in the admin login functionality at /admin/index.php, where the username and password parameters are not properly sanitized before being used in SQL queries. This allows remote attackers to manipulate database queries, potentially bypassing authentication, extracting sensitive data, or modifying database contents.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication mechanisms, gain unauthorized administrative access, and potentially compromise the entire hotel reservation system database containing guest information and booking records.

Affected Products

• Campcodes Online Hotel Reservation System 1.0
• Web applications using the vulnerable /admin/index.php login component

Discovery Timeline

• 2025-07-31 - CVE-2025-8378 published to NVD
• 2025-08-06 - Last updated in NVD database

Technical Details for CVE-2025-8378

Vulnerability Analysis

This vulnerability stems from improper input validation in the Login component of the Campcodes Online Hotel Reservation System. The affected endpoint /admin/index.php accepts user-supplied input through the username and password parameters without adequate sanitization or parameterized queries. When user input is directly concatenated into SQL statements, attackers can inject malicious SQL code that alters the intended query logic.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection flaws where untrusted data is sent to an interpreter as part of a command or query. The attack can be launched remotely over the network without requiring any authentication or user interaction, making it particularly dangerous for internet-facing deployments.

Root Cause

The root cause is the lack of proper input sanitization and the failure to use parameterized queries or prepared statements in the login authentication mechanism. The application directly incorporates user-supplied values from the username and password form fields into SQL query strings, allowing attackers to break out of the intended query structure and execute arbitrary SQL commands.

Attack Vector

The attack vector is network-based, allowing remote exploitation without authentication. An attacker can craft malicious input containing SQL metacharacters and commands to manipulate the authentication query. Common attack payloads include using single quotes to escape string context, boolean-based blind injection techniques, or UNION-based attacks to extract data.

The vulnerability in the login form can be exploited by injecting SQL syntax into the username or password fields. For example, classic authentication bypass payloads that modify the SQL WHERE clause logic can grant unauthorized administrative access. The exploit has been publicly disclosed, increasing the risk of active exploitation.

For detailed technical analysis and proof-of-concept information, refer to the GitHub Issue Discussion and VulDB #318356.

Detection Methods for CVE-2025-8378

Indicators of Compromise

• Unusual login attempts with SQL metacharacters (single quotes, semicolons, double dashes) in username or password fields
• Web server logs showing requests to /admin/index.php with encoded SQL injection payloads
• Database query logs containing unexpected UNION, SELECT, OR, or comment syntax
• Multiple failed authentication attempts followed by successful admin access from the same IP

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP POST parameters targeting /admin/index.php
• Implement application-level logging to capture all authentication attempts with full parameter values for forensic analysis
• Configure database audit logging to detect anomalous query patterns, especially those containing injection signatures
• Use intrusion detection systems (IDS) with SQL injection signature rules for traffic analysis

Monitoring Recommendations

• Monitor web server access logs for suspicious patterns in POST requests to the admin login endpoint
• Set up alerts for multiple authentication failures followed by successful logins from the same source
• Implement real-time database query monitoring to detect injection attempts and unauthorized data access
• Review application error logs for SQL syntax errors that may indicate injection probing attempts

How to Mitigate CVE-2025-8378

Immediate Actions Required

• Restrict network access to the /admin/index.php endpoint using IP whitelisting or VPN requirements
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules in front of the application
• Implement additional authentication layers such as multi-factor authentication for administrative access
• Consider temporarily disabling the admin login interface until a proper fix can be applied

Patch Information

As of the last update on 2025-08-06, no official patch has been released by Campcodes for this vulnerability. Organizations should monitor the Campcodes website for security updates and patches. In the absence of an official fix, implementing the workarounds below is strongly recommended.

For additional vulnerability intelligence, consult VulDB CTI ID #318356.

Workarounds

• Implement input validation and sanitization at the application level using a reverse proxy or custom middleware
• Use a WAF to filter malicious SQL injection payloads before they reach the application
• Restrict administrative access to trusted internal networks only, blocking external access entirely
• If source code access is available, modify the login queries to use prepared statements with parameterized queries
• Deploy network segmentation to isolate the hotel reservation system from critical infrastructure

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Blocked',log,auditlog"

# Restrict admin access by IP using .htaccess
<Files "index.php">
    <Directory "/admin">
        Require ip 192.168.1.0/24
        Require ip 10.0.0.0/8
    </Directory>
</Files>