CVE-2025-5211: Phpgurukul Employee Record System SQLi

CVE-2025-5211 Overview

A critical SQL injection vulnerability has been identified in PHPGurukul Employee Record Management System version 1.3. This issue affects the processing of the file /myprofile.php, where manipulation of the EmpCode parameter allows attackers to inject malicious SQL commands. The attack can be initiated remotely without authentication, and the exploit has been publicly disclosed.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract, modify, or delete sensitive employee data from the database, potentially compromising the entire employee record management system.

Affected Products

• PHPGurukul Employee Record Management System version 1.3
• Applications using the vulnerable /myprofile.php endpoint
• Systems with unpatched Employee Record Management System deployments

Discovery Timeline

• 2025-05-26 - CVE-2025-5211 published to NVD
• 2025-06-05 - Last updated in NVD database

Technical Details for CVE-2025-5211

Vulnerability Analysis

This SQL injection vulnerability exists in the /myprofile.php file of PHPGurukul Employee Record Management System. The application fails to properly sanitize user input provided through the EmpCode parameter before incorporating it into SQL queries. This allows attackers to inject arbitrary SQL statements that are executed against the backend database.

The vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The network-based attack vector with low complexity makes this vulnerability particularly dangerous for internet-facing deployments.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries or prepared statements in the /myprofile.php file. The EmpCode parameter value is directly concatenated into SQL queries without proper escaping or sanitization, enabling attackers to break out of the intended query structure and execute arbitrary SQL commands.

Attack Vector

The vulnerability can be exploited remotely over the network. An attacker sends crafted HTTP requests to the /myprofile.php endpoint with malicious SQL payloads injected into the EmpCode parameter. Since no authentication appears to be required and the attack complexity is low, exploitation is straightforward.

A typical attack would involve crafting requests that manipulate the EmpCode parameter to include SQL metacharacters and additional SQL statements. This could allow attackers to extract database contents using UNION-based injection, modify records through UPDATE statements, or potentially escalate to operating system command execution depending on database configuration.

For detailed technical information, refer to the GitHub Issue Discussion and VulDB #310307.

Detection Methods for CVE-2025-5211

Indicators of Compromise

• Unusual or malformed requests to /myprofile.php containing SQL metacharacters such as single quotes, double dashes, or UNION keywords in the EmpCode parameter
• Database error messages appearing in web server logs indicating SQL syntax errors
• Unexpected database queries or data exfiltration patterns in database audit logs
• Multiple rapid requests to the profile endpoint from single IP addresses

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect SQL injection patterns in the EmpCode parameter
• Implement application-level logging to capture all requests to /myprofile.php with parameter values
• Enable database query logging and monitor for suspicious query patterns including UNION SELECT statements
• Use intrusion detection systems (IDS) with SQL injection signature rules

Monitoring Recommendations

• Monitor web server access logs for requests containing SQL injection payloads targeting /myprofile.php
• Set up alerts for database errors that may indicate failed injection attempts
• Implement anomaly detection for unusual database query patterns
• Review database audit logs for unauthorized data access or modification attempts

How to Mitigate CVE-2025-5211

Immediate Actions Required

• Restrict access to the /myprofile.php endpoint until a patch is applied
• Implement input validation to whitelist only alphanumeric characters for the EmpCode parameter
• Deploy WAF rules to block SQL injection patterns targeting this endpoint
• Consider taking the Employee Record Management System offline if it contains sensitive data

Patch Information

As of the last NVD update on 2025-06-05, no official patch has been released by PHPGurukul. Organizations should monitor the PHP Gurukul Blog for security updates and patch announcements. In the absence of an official fix, implementing the workarounds below is strongly recommended.

Workarounds

• Modify the /myprofile.php file to use prepared statements with parameterized queries for all database operations involving the EmpCode parameter
• Implement strict input validation that rejects any non-alphanumeric characters in employee code fields
• Deploy a reverse proxy or WAF in front of the application with SQL injection filtering enabled
• Restrict network access to the application to trusted IP ranges only

# Example Apache ModSecurity rule to block SQL injection in EmpCode parameter
SecRule ARGS:EmpCode "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in EmpCode parameter',\
    tag:'CVE-2025-5211'"