CVE-2025-6300: Phpgurukul ERMS SQL Injection Vulnerability

CVE-2025-6300 Overview

A critical SQL injection vulnerability has been identified in PHPGurukul Employee Record Management System version 1.3. This vulnerability exists in the /admin/editempeducation.php file, where the yopgra parameter is improperly handled, allowing attackers to inject malicious SQL commands. The flaw can be exploited remotely without authentication, potentially compromising the entire database and sensitive employee records.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract, modify, or delete sensitive employee data, bypass authentication mechanisms, and potentially gain unauthorized access to the underlying database server.

Affected Products

• PHPGurukul Employee Record Management System 1.3

Discovery Timeline

• 2025-06-20 - CVE-2025-6300 published to NVD
• 2025-06-26 - Last updated in NVD database

Technical Details for CVE-2025-6300

Vulnerability Analysis

This SQL injection vulnerability affects the employee education editing functionality within the PHPGurukul Employee Record Management System. The vulnerable endpoint /admin/editempeducation.php fails to properly sanitize the yopgra parameter before incorporating it into SQL queries. This allows an attacker to craft malicious input that alters the intended SQL statement logic, enabling unauthorized database operations.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The network-accessible attack vector combined with no required authentication makes this vulnerability particularly dangerous for internet-facing deployments.

Root Cause

The root cause is improper input validation and lack of parameterized queries in the /admin/editempeducation.php file. The yopgra parameter is directly concatenated into SQL statements without proper sanitization or the use of prepared statements, allowing attackers to inject arbitrary SQL code. This represents a fundamental failure to implement secure coding practices for database interactions.

Attack Vector

The attack can be initiated remotely over the network against the administrative interface of the Employee Record Management System. An attacker targets the yopgra parameter in the /admin/editempeducation.php endpoint by submitting specially crafted input containing SQL metacharacters and malicious SQL statements. The exploit has been publicly disclosed, increasing the risk of widespread exploitation.

The vulnerability allows attackers to manipulate database queries to extract sensitive employee information, modify records, escalate privileges by manipulating user credentials in the database, or potentially execute system commands if database permissions are misconfigured. For detailed technical information, see the GitHub Issue Discussion and VulDB entry #313300.

Detection Methods for CVE-2025-6300

Indicators of Compromise

• Unusual SQL error messages appearing in web server logs or application responses
• Unexpected database queries containing SQL keywords like UNION, SELECT, or comment sequences (--, /*)
• Access logs showing repeated requests to /admin/editempeducation.php with abnormal parameter values
• Database audit logs indicating unauthorized data access or modification attempts

Detection Strategies

• Deploy web application firewall (WAF) rules to detect SQL injection patterns in the yopgra parameter
• Monitor HTTP request logs for suspicious payloads targeting /admin/editempeducation.php
• Implement database activity monitoring to detect anomalous query patterns
• Configure intrusion detection systems (IDS) with SQL injection signature rules

Monitoring Recommendations

• Enable detailed logging for all requests to administrative endpoints
• Set up alerts for database errors that may indicate injection attempts
• Monitor for data exfiltration patterns such as large or unusual database query results
• Review access logs for automated scanning activity targeting vulnerable parameters

How to Mitigate CVE-2025-6300

Immediate Actions Required

• Restrict access to the /admin/editempeducation.php endpoint using network-level controls
• Implement a web application firewall with SQL injection protection rules
• Disable or isolate the affected Employee Record Management System until a patch is available
• Review database user permissions and apply least privilege principles
• Backup critical data and audit for signs of compromise

Patch Information

No official vendor patch has been identified at this time. Organizations using PHPGurukul Employee Record Management System 1.3 should monitor the PHPGurukul website for security updates. Consider implementing the workarounds below until an official fix is released.

Workarounds

• Apply input validation by modifying the vulnerable PHP code to use prepared statements with parameterized queries
• Deploy a reverse proxy or WAF to filter malicious SQL injection payloads
• Restrict network access to the administrative interface to trusted IP addresses only
• Consider migrating to an alternative employee management system with a stronger security posture

# Example: Apache mod_security rule to block SQL injection attempts
SecRule ARGS:yopgra "@detectSQLi" \
    "id:1001,phase:2,deny,status:403,msg:'SQL Injection attempt detected in yopgra parameter'"