CVE-2025-3006: E-diary Management System SQLi Vulnerability

CVE-2025-3006 Overview

A critical SQL injection vulnerability has been identified in PHPGurukul e-Diary Management System version 1.0. The vulnerability exists in the /edit-category.php endpoint, where the Category parameter is susceptible to SQL injection attacks due to improper input sanitization. This flaw allows remote attackers to manipulate database queries, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database records, or potentially gain unauthorized access to the underlying system through the vulnerable /edit-category.php?id=8 endpoint.

Affected Products

• PHPGurukul e-Diary Management System 1.0

Discovery Timeline

• 2025-03-31 - CVE-2025-3006 published to NVD
• 2025-05-08 - Last updated in NVD database

Technical Details for CVE-2025-3006

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) represents a classic injection flaw where user-supplied input is incorporated directly into SQL queries without proper sanitization or parameterization. The vulnerable endpoint /edit-category.php accepts a Category parameter that can be manipulated by attackers to inject malicious SQL statements into database queries.

The vulnerability also maps to CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), indicating that special characters within the Category input are not properly neutralized before being processed by the database engine. This allows attackers to break out of the intended query structure and execute arbitrary SQL commands.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries (prepared statements) in the PHP code handling the Category parameter. When user input is directly concatenated into SQL queries without proper escaping or parameterization, attackers can inject SQL syntax that alters the query's logic. The developers failed to implement proper input sanitization mechanisms or use secure database interaction methods such as PDO prepared statements.

Attack Vector

The attack can be initiated remotely over the network without requiring authentication. An attacker can craft a malicious HTTP request to the /edit-category.php endpoint, manipulating the Category parameter to include SQL injection payloads. Common attack scenarios include:

The attacker sends a crafted request containing SQL metacharacters such as single quotes, semicolons, or UNION statements within the Category parameter. When the application processes this input and constructs a database query, the injected SQL code executes alongside the legitimate query. This can result in data extraction through UNION-based attacks, authentication bypass, or data manipulation through INSERT/UPDATE/DELETE statements. The exploit has been publicly disclosed, increasing the risk of widespread exploitation. For technical details on the vulnerability, see the GitHub Issue CVE Reference.

Detection Methods for CVE-2025-3006

Indicators of Compromise

• Monitor web server access logs for requests to /edit-category.php containing SQL injection patterns such as single quotes, UNION SELECT statements, or comment sequences (--, /**/)
• Look for unusual database query errors or increased database activity originating from web application connections
• Check for unauthorized database access patterns including bulk data extraction or schema enumeration queries
• Review application logs for repeated failed requests to the edit-category endpoint with varying payloads

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns targeting the Category parameter
• Implement database activity monitoring to identify anomalous query patterns or unauthorized data access
• Configure intrusion detection systems (IDS) to alert on HTTP requests containing SQL injection signatures
• Enable detailed logging on the web application and database servers for forensic analysis

Monitoring Recommendations

• Establish baseline metrics for normal database query patterns and alert on deviations
• Monitor for outbound data transfers that could indicate successful data exfiltration following exploitation
• Track authentication events and privilege escalation attempts that may follow successful SQL injection attacks

How to Mitigate CVE-2025-3006

Immediate Actions Required

• Restrict access to the /edit-category.php endpoint until a patch is applied, using network-level controls or application firewall rules
• Implement input validation on all user-supplied parameters, especially the Category field
• Deploy a Web Application Firewall (WAF) with SQL injection detection rules as an interim protection measure
• Review database user permissions to ensure the application uses least-privilege database accounts

Patch Information

No official patch information is currently available from PHPGurukul for this vulnerability. Organizations using the affected e-Diary Management System should monitor the PHP Gurukul Security Blog for security updates and patch releases. Additional vulnerability details are available through VulDB #302056.

Workarounds

• Implement prepared statements (parameterized queries) using PDO or MySQLi in the affected PHP code to prevent SQL injection
• Apply input sanitization using functions like htmlspecialchars(), mysqli_real_escape_string(), or appropriate input filters on all Category parameter values
• Consider disabling or restricting access to the edit-category functionality until proper security controls are implemented
• Deploy virtual patching through WAF rules to block malicious payloads targeting the vulnerable endpoint

# Example Apache .htaccess rule to restrict access to vulnerable endpoint
<Files "edit-category.php">
    Order deny,allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>