CVE-2025-3147: Boat Booking System SQL Injection Flaw

CVE-2025-3147 Overview

A SQL injection vulnerability has been discovered in PHPGurukul Boat Booking System version 1.0. This vulnerability affects the /add-subadmin.php file, where the sadminusername parameter is susceptible to SQL injection attacks due to improper input sanitization. The flaw can be exploited remotely without authentication, allowing attackers to manipulate database queries and potentially compromise the underlying database.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially escalate to full system compromise through database-level attacks.

Affected Products

• PHPGurukul Boat Booking System 1.0

Discovery Timeline

• 2025-04-03 - CVE-2025-3147 published to NVD
• 2025-05-07 - Last updated in NVD database

Technical Details for CVE-2025-3147

Vulnerability Analysis

This vulnerability is classified as a SQL injection flaw (CWE-89) and more broadly as an injection vulnerability (CWE-74). The vulnerable endpoint /add-subadmin.php processes the sadminusername parameter without proper sanitization or parameterization, allowing attackers to inject malicious SQL statements into database queries. Since the application fails to validate or escape user-supplied input before incorporating it into SQL queries, an attacker can craft specially designed input to alter the intended query logic.

The network-accessible nature of this vulnerability means that any remote attacker can attempt exploitation without requiring local access to the system. The lack of authentication requirements further lowers the barrier to exploitation.

Root Cause

The root cause of this vulnerability is insufficient input validation and the absence of parameterized queries (prepared statements) in the /add-subadmin.php file. When user input from the sadminusername parameter is directly concatenated into SQL queries without proper sanitization, it creates an injection point that attackers can exploit to execute arbitrary SQL commands.

Attack Vector

The attack is initiated remotely over the network by sending crafted HTTP requests to the /add-subadmin.php endpoint. An attacker manipulates the sadminusername parameter with SQL injection payloads to alter the behavior of backend database queries. Common exploitation techniques include:

• Union-based injection - Appending UNION SELECT statements to extract data from other tables
• Boolean-based blind injection - Using conditional statements to infer database contents
• Time-based blind injection - Utilizing time delays to extract information character by character
• Error-based injection - Leveraging database error messages to reveal internal structure

The exploit has been publicly disclosed, as referenced in the GitHub Issue Discussion, increasing the risk of active exploitation.

Detection Methods for CVE-2025-3147

Indicators of Compromise

• Unusual SQL syntax or special characters (', ", --, ;, UNION, SELECT) in web server access logs for /add-subadmin.php
• Database query errors or exceptions originating from the add-subadmin functionality
• Unexpected database modifications or unauthorized data extraction patterns
• Anomalous requests to /add-subadmin.php with atypical sadminusername parameter values

Detection Strategies

• Configure web application firewalls (WAF) to detect and block SQL injection patterns targeting the sadminusername parameter
• Implement intrusion detection system (IDS) rules to identify SQL injection attack signatures in HTTP traffic
• Enable detailed logging on the web server and database to capture suspicious query patterns
• Monitor for repeated failed authentication attempts or unusual parameter fuzzing behavior

Monitoring Recommendations

• Enable comprehensive access logging for all PHP endpoints, particularly /add-subadmin.php
• Configure database activity monitoring to alert on suspicious query patterns such as UNION SELECT, OR 1=1, or stacked queries
• Set up real-time alerting for HTTP requests containing common SQL injection payloads
• Review application logs regularly for evidence of reconnaissance or exploitation attempts

How to Mitigate CVE-2025-3147

Immediate Actions Required

• Restrict access to /add-subadmin.php using IP whitelisting or authentication controls until a patch is available
• Implement web application firewall (WAF) rules to filter SQL injection attempts on the sadminusername parameter
• Consider taking the Boat Booking System offline if it handles sensitive data and no mitigation is possible
• Review database user permissions to limit the potential impact of SQL injection (principle of least privilege)

Patch Information

As of the last modification date (2025-05-07), no official patch has been released by PHPGurukul. Organizations should monitor the PHPGurukul website for security updates. Additional vulnerability details are available through VulDB #303052.

Workarounds

• Deploy a web application firewall with SQL injection detection rules as an immediate protective layer
• Implement input validation on the server side by restricting the sadminusername parameter to alphanumeric characters only
• Use prepared statements with parameterized queries if modifying the source code is an option
• Isolate the affected application from critical network segments to limit lateral movement in case of compromise
• Consider disabling the sub-admin creation functionality until the vulnerability is addressed

# Example WAF rule for ModSecurity to block SQL injection on sadminusername
SecRule ARGS:sadminusername "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in sadminusername parameter',\
    log,\
    auditlog"