CVE-2026-0697: Intern Management System SQLi Vulnerability

CVE-2026-0697 Overview

A SQL injection vulnerability has been discovered in code-projects Intern Membership Management System version 1.0. The vulnerability exists within the /intern/admin/edit_admin.php file, where improper handling of the admin_id parameter allows attackers to inject malicious SQL commands. This flaw can be exploited remotely, enabling unauthorized database access and manipulation.

Critical Impact

Remote attackers with administrative privileges can exploit the SQL injection vulnerability in the admin_id parameter to access, modify, or delete sensitive database contents, potentially compromising all intern and membership data stored in the system.

Affected Products

• code-projects Intern Membership Management System 1.0

Discovery Timeline

• January 8, 2026 - CVE-2026-0697 published to NVD
• January 8, 2026 - Last updated in NVD database

Technical Details for CVE-2026-0697

Vulnerability Analysis

This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) resides in the administrative interface of the Intern Membership Management System. The vulnerable endpoint /intern/admin/edit_admin.php accepts user-controlled input through the admin_id parameter without proper sanitization or parameterized query implementation.

When processing requests to edit administrator accounts, the application directly concatenates the admin_id value into SQL queries. This allows an authenticated administrative user to craft malicious input that breaks out of the intended query structure and executes arbitrary SQL commands against the underlying database.

The exploit has been publicly disclosed and proof-of-concept code is available, increasing the likelihood of exploitation attempts against unpatched systems.

Root Cause

The root cause is insufficient input validation and the use of dynamic SQL query construction. The application fails to implement prepared statements or parameterized queries when handling the admin_id parameter. Instead of treating user input as data, the vulnerable code treats it as part of the SQL command structure, allowing injection attacks.

This represents a fundamental secure coding failure where user-supplied data is trusted and directly incorporated into database queries without sanitization, escaping, or the use of secure database abstraction layers.

Attack Vector

The attack can be initiated remotely over the network by an authenticated user with administrative privileges. The attacker submits a specially crafted HTTP request to the /intern/admin/edit_admin.php endpoint with a malicious payload in the admin_id parameter.

The SQL injection payload could include UNION-based attacks to extract data from other tables, boolean-based blind injection to enumerate database contents, or time-based techniques if direct output is not visible. Successful exploitation could lead to unauthorized data access, data modification, or in some configurations, command execution on the database server.

For technical details on the exploitation mechanism, see the GitHub SQL Injection Report.

Detection Methods for CVE-2026-0697

Indicators of Compromise

• Unusual or malformed requests to /intern/admin/edit_admin.php containing SQL syntax in the admin_id parameter
• Web server logs showing requests with SQL keywords such as UNION, SELECT, OR 1=1, single quotes, or encoded SQL characters
• Database error messages appearing in HTTP responses or application logs
• Unexpected database queries or connections originating from the web application

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP parameters
• Configure intrusion detection systems to alert on SQL injection signatures targeting the vulnerable endpoint
• Monitor application logs for repeated requests to edit_admin.php with suspicious parameter values
• Enable database query logging and review for anomalous or unexpected queries

Monitoring Recommendations

• Establish baseline metrics for normal administrative activity and alert on deviations
• Deploy file integrity monitoring on the web application directory to detect unauthorized modifications
• Configure real-time alerting for any database errors or exceptions generated by the application
• Review access logs for authentication patterns that may indicate credential abuse prior to exploitation

How to Mitigate CVE-2026-0697

Immediate Actions Required

• Restrict access to the /intern/admin/ directory to trusted IP addresses only until a patch is available
• Implement input validation to reject non-numeric values in the admin_id parameter
• Deploy a Web Application Firewall with SQL injection protection rules
• Review database user permissions and ensure the application uses a least-privilege database account

Patch Information

As of the last NVD update on January 8, 2026, no official patch has been released by code-projects for this vulnerability. Organizations using the Intern Membership Management System should monitor the Code Projects Homepage for security updates. Additional vulnerability details can be found at VulDB #339974.

Workarounds

• Implement server-side input validation to ensure admin_id contains only numeric values before processing
• Modify the application code to use prepared statements with parameterized queries for all database interactions
• Deploy network-level access controls to limit who can reach the administrative interface
• Consider taking the application offline or disabling the edit_admin.php functionality until the code can be remediated

For PHP applications, the recommended mitigation is to replace dynamic SQL queries with PDO prepared statements:

# Recommended mitigation approach for edit_admin.php
# Replace direct parameter concatenation with prepared statements
# Use PDO with parameter binding to prevent SQL injection
# Example: $stmt = $pdo->prepare("SELECT * FROM admins WHERE admin_id = ?");
# Example: $stmt->execute([$admin_id]);