CVE-2026-0698: Intern Management System SQLi Vulnerability

CVE-2026-0698 Overview

A SQL injection vulnerability has been identified in the code-projects Intern Membership Management System version 1.0. This vulnerability affects the /intern/admin/edit_students.php file, where manipulation of the admin_id argument enables SQL injection attacks. The vulnerability can be exploited remotely, and proof-of-concept exploit details have been publicly disclosed.

Critical Impact

Remote attackers with administrative privileges can exploit this SQL injection vulnerability to compromise the underlying database, potentially exposing sensitive student membership data and enabling unauthorized data modification.

Affected Products

• code-projects Intern Membership Management System 1.0
• /intern/admin/edit_students.php endpoint

Discovery Timeline

• 2026-01-08 - CVE-2026-0698 published to NVD
• 2026-01-08 - Last updated in NVD database

Technical Details for CVE-2026-0698

Vulnerability Analysis

This vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), commonly known as injection. The SQL injection flaw exists in the administrative interface of the Intern Membership Management System, specifically within the student editing functionality. When processing the admin_id parameter, the application fails to properly sanitize user-supplied input before incorporating it into SQL queries. This allows an authenticated attacker with administrative access to inject arbitrary SQL commands that will be executed by the database server.

The network-accessible nature of this vulnerability means it can be exploited remotely without requiring physical access to the target system. The exploit has been publicly disclosed, increasing the risk of widespread exploitation attempts against unpatched installations.

Root Cause

The root cause of this vulnerability is improper input validation and lack of parameterized queries in the edit_students.php file. The application directly concatenates user-controlled input (the admin_id parameter) into SQL statements without adequate sanitization or prepared statement usage, enabling SQL injection attacks.

Attack Vector

The attack is network-based and requires the attacker to have high-privilege (administrative) access to the application. The vulnerable endpoint /intern/admin/edit_students.php accepts the admin_id parameter, which can be manipulated to inject malicious SQL code. An attacker can craft a specially formed request containing SQL syntax in the admin_id field that, when processed by the server, alters the intended query logic or executes additional unauthorized database commands.

The vulnerability does not require user interaction for exploitation once administrative access is obtained. Successful exploitation can result in limited unauthorized read access, data modification, and potential service disruption of the database backend.

For detailed technical information about the exploit, refer to the GitHub CVE Exploit Details and VulDB #339975 Technical Report.

Detection Methods for CVE-2026-0698

Indicators of Compromise

• Unusual SQL syntax patterns in web server access logs targeting /intern/admin/edit_students.php
• Unexpected database queries or errors logged by the database server
• Anomalous values in the admin_id parameter containing SQL keywords such as UNION, SELECT, DROP, or comment markers (--, /*)
• Database audit logs showing unauthorized data access or modification

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block SQL injection patterns in HTTP requests to the vulnerable endpoint
• Configure intrusion detection systems (IDS) to alert on SQL injection attack signatures in network traffic
• Monitor application logs for repeated requests to edit_students.php with malformed or suspicious parameter values
• Deploy database activity monitoring to identify anomalous query patterns indicative of SQL injection exploitation

Monitoring Recommendations

• Enable verbose logging on the web server for the /intern/admin/ directory to capture full request parameters
• Configure database query logging to track all queries executed against the membership database
• Set up real-time alerts for failed authentication attempts or privilege escalation activities in the admin interface
• Regularly review access logs for patterns consistent with automated SQL injection scanning tools

How to Mitigate CVE-2026-0698

Immediate Actions Required

• Restrict network access to the administrative interface (/intern/admin/) to trusted IP addresses only
• Implement additional authentication controls for the vulnerable endpoint until a patch is applied
• Deploy a web application firewall with SQL injection protection rules in front of the application
• Consider temporarily disabling the edit_students.php functionality if not critical to operations

Patch Information

No official vendor patch information is currently available. Organizations using the code-projects Intern Membership Management System should monitor the Code Projects Resource Hub for security updates. The vulnerability details are tracked on VulDB #339975.

Workarounds

• Implement input validation to whitelist only numeric values for the admin_id parameter
• Modify the vulnerable code to use parameterized queries or prepared statements instead of direct string concatenation
• Apply web application firewall rules to block requests containing SQL injection patterns targeting the admin_id parameter
• Limit database user privileges for the application to minimum required permissions (principle of least privilege)

# Example Apache .htaccess restriction for admin directory
<Directory "/var/www/html/intern/admin">
    # Restrict access to trusted IP addresses only
    Require ip 10.0.0.0/8 192.168.1.0/24
    # Alternatively, require additional authentication
    AuthType Basic
    AuthName "Restricted Admin Area"
    AuthUserFile /etc/apache2/.htpasswd
    Require valid-user
</Directory>