CVE-2026-3710: Flight Ticket Booking System SQLi Flaw

CVE-2026-3710 Overview

A SQL Injection vulnerability has been identified in code-projects Simple Flight Ticket Booking System version 1.0. This security flaw affects an unknown function within the /Adminadd.php file. The vulnerability allows attackers to inject malicious SQL commands through manipulation of multiple parameters including flightno, airplaneid, departure, dtime, arrival, atime, ec, ep, bc, and bp. Remote exploitation of this vulnerability is possible, and the exploit has been publicly disclosed.

Critical Impact

Authenticated attackers with administrative privileges can exploit this SQL Injection vulnerability to potentially read, modify, or delete database contents, compromising the confidentiality, integrity, and availability of the flight booking system.

Affected Products

• Carmelo Simple Flight Ticket Booking System 1.0

Discovery Timeline

• 2026-03-08 - CVE CVE-2026-3710 published to NVD
• 2026-03-09 - Last updated in NVD database

Technical Details for CVE-2026-3710

Vulnerability Analysis

This SQL Injection vulnerability exists in the administrative interface of the Simple Flight Ticket Booking System. The /Adminadd.php file processes user-supplied input without proper sanitization or parameterized queries. Multiple input parameters related to flight management—including flight numbers, airplane identifiers, departure/arrival information, and pricing fields—are vulnerable to injection attacks.

The vulnerability requires administrative privileges to exploit, which somewhat limits the attack surface. However, once authenticated, an attacker can manipulate database queries to extract sensitive information, modify flight records, or potentially compromise the entire database backend.

Root Cause

The root cause of this vulnerability is improper input validation and the failure to use parameterized queries or prepared statements when constructing SQL queries. User-supplied input from the administrative flight addition form is concatenated directly into SQL statements, allowing attackers to break out of the intended query structure and inject arbitrary SQL commands.

Attack Vector

The attack vector is network-based, allowing remote exploitation by authenticated administrators. An attacker with valid admin credentials can craft malicious input containing SQL syntax in any of the vulnerable parameters (flightno, airplaneid, departure, dtime, arrival, atime, ec, ep, bc, bp). When submitted through the administrative interface, the malicious payload is incorporated into the database query without sanitization, executing the attacker's SQL commands.

The vulnerability mechanism involves improper handling of flight management parameters in the /Adminadd.php file. Technical details and proof-of-concept information have been documented in the GitHub CVE Issue Tracker and VulDB #349656.

Detection Methods for CVE-2026-3710

Indicators of Compromise

• Unusual SQL error messages in application logs related to /Adminadd.php
• Unexpected database queries containing UNION SELECT, comment sequences (--), or stacked queries
• Administrative session activity with abnormal input patterns in flight management parameters
• Database audit logs showing unauthorized data access or modification attempts

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP requests
• Monitor application logs for SQL syntax errors or unusual query behavior
• Deploy database activity monitoring to identify anomalous query patterns
• Review access logs for /Adminadd.php endpoint for suspicious parameter values

Monitoring Recommendations

• Enable comprehensive logging for the /Adminadd.php administrative endpoint
• Configure alerts for SQL error messages in application logs
• Implement database query logging to capture potentially malicious statements
• Monitor for multiple failed or unusual requests to administrative functions

How to Mitigate CVE-2026-3710

Immediate Actions Required

• Restrict network access to the administrative interface to trusted IP addresses only
• Implement additional authentication controls for the administrative panel
• Review administrative user accounts and remove unnecessary access
• Consider temporarily disabling the /Adminadd.php functionality until a patch is available

Patch Information

No official vendor patch is currently available for this vulnerability. Organizations should contact the vendor or monitor the Code Projects Resource Hub for updates. In the absence of an official fix, implementing workarounds and additional security controls is strongly recommended.

Workarounds

• Implement input validation and sanitization for all vulnerable parameters at the application layer
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Use prepared statements or parameterized queries if modifying the source code is possible
• Restrict administrative access to the application via IP whitelisting or VPN

# Example WAF rule to block common SQL injection patterns
# ModSecurity rule for Apache/Nginx
SecRule ARGS "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection Attempt Detected'"