CVE-2025-2472: Phpgurukul Apartment SQLI Vulnerability

CVE-2025-2472 Overview

A SQL Injection vulnerability has been identified in PHPGurukul Apartment Visitors Management System version 1.0. This vulnerability affects the Sign In component, specifically within the /index.php file where the username parameter is improperly handled. Due to insufficient input validation and sanitization, attackers can manipulate the username field to inject malicious SQL queries, potentially compromising the integrity, confidentiality, and availability of the underlying database.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability without authentication to manipulate database queries, potentially extracting sensitive visitor data, bypassing authentication, or modifying records in the apartment management system.

Affected Products

• PHPGurukul Apartment Visitors Management System 1.0
• Sign In Component (/index.php)
• Username authentication parameter

Discovery Timeline

• 2025-03-18 - CVE-2025-2472 published to NVD
• 2025-05-16 - Last updated in NVD database

Technical Details for CVE-2025-2472

Vulnerability Analysis

This vulnerability exists in the authentication mechanism of the Apartment Visitors Management System. When users attempt to sign in through the /index.php page, the application fails to properly sanitize the username parameter before incorporating it into SQL queries. This lack of input validation allows attackers to inject arbitrary SQL commands that the database server will execute.

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.

Given the network-accessible nature of web applications, this vulnerability can be exploited remotely by any attacker who can reach the login page. No authentication is required to attempt exploitation, making this vulnerability particularly dangerous for internet-facing deployments of the application.

Root Cause

The root cause of this vulnerability is the direct concatenation or improper handling of user-supplied input (the username parameter) within SQL queries without adequate sanitization or parameterization. The application likely constructs authentication queries by directly embedding user input into the SQL statement, rather than using prepared statements with parameterized queries.

This coding practice violates secure development principles and allows special SQL characters and keywords submitted through the username field to be interpreted as SQL syntax rather than literal string data.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can craft malicious input containing SQL syntax and submit it through the login form's username field. The vulnerable application processes this input and passes it to the database engine, where the injected SQL commands execute with the application's database privileges.

Typical exploitation scenarios include:

• Authentication Bypass: Injecting SQL logic that always evaluates to true, allowing access without valid credentials
• Data Exfiltration: Using UNION-based or blind SQL injection techniques to extract database contents including visitor records, resident information, and administrative credentials
• Data Manipulation: Modifying or deleting records within the database

The exploit has been publicly disclosed, as documented in the GitHub Issue Report. For additional technical context, refer to the VulDB entry #299965.

Detection Methods for CVE-2025-2472

Indicators of Compromise

• Unusual or malformed entries in web server access logs targeting /index.php with suspicious username parameters
• Database query logs showing unexpected SQL syntax including comments (--, /*), UNION statements, or boolean logic (OR 1=1)
• Failed or anomalous authentication attempts with special characters in usernames
• Unexpected database errors or error messages exposed to users during login attempts

Detection Strategies

• Deploy web application firewalls (WAF) with SQL injection detection rules monitoring the Sign In endpoint
• Implement intrusion detection systems (IDS) with signatures for common SQL injection patterns
• Enable and monitor database query logging for anomalous query structures originating from the web application
• Configure SIEM rules to alert on patterns of SQL injection attempts against authentication endpoints

Monitoring Recommendations

• Review web server logs regularly for requests to /index.php containing SQL metacharacters or keywords
• Monitor database performance and query patterns for signs of data exfiltration via time-based blind SQL injection
• Track authentication failures and successes for anomalies that may indicate successful exploitation
• Implement rate limiting on authentication endpoints to slow automated exploitation attempts

How to Mitigate CVE-2025-2472

Immediate Actions Required

• Restrict network access to the affected application to trusted IP addresses only until a patch is available
• Implement a web application firewall (WAF) with SQL injection protection rules in front of the application
• Review and audit recent authentication logs for signs of exploitation
• Consider taking the application offline if it handles sensitive data and cannot be adequately protected

Patch Information

As of the last NVD update on 2025-05-16, no official vendor patch has been announced for this vulnerability. Organizations using PHPGurukul Apartment Visitors Management System should monitor the PHPGurukul website for security updates and patches.

In the absence of an official patch, organizations should implement the workarounds listed below and consider engaging with the vendor or a qualified developer to address the underlying code vulnerability by implementing prepared statements with parameterized queries.

Workarounds

• Deploy a web application firewall (WAF) configured to block SQL injection attacks targeting the login endpoint
• Implement input validation at the application layer by modifying the code to sanitize the username parameter and use prepared statements
• Restrict database user privileges for the application to minimum required permissions, limiting potential damage from successful exploitation
• Enable database query logging and alerting to detect exploitation attempts in real-time

# Example WAF rule configuration (ModSecurity)
# Block SQL injection patterns in POST parameters
SecRule ARGS:username "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection Attempt Detected in Username Parameter',\
    tag:'application-multi',\
    tag:'language-multi',\
    tag:'attack-sqli'"