CVE-2026-3042: Admerc Event Management System SQLi Flaw

CVE-2026-3042 Overview

A SQL injection vulnerability has been identified in itsourcecode Event Management System version 1.0. The vulnerability exists in an unknown function within the /admin/index.php file, where manipulation of the ID argument allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, and exploit information has been publicly disclosed.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to manipulate database queries, potentially extracting sensitive data, modifying database contents, or bypassing authentication mechanisms in the Event Management System's administrative interface.

Affected Products

• Admerc Event Management System 1.0
• itsourcecode Event Management System 1.0

Discovery Timeline

• 2026-02-24 - CVE CVE-2026-3042 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2026-3042

Vulnerability Analysis

This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) affects the administrative interface of the Event Management System. The vulnerable endpoint /admin/index.php fails to properly sanitize the ID parameter before incorporating it into SQL queries, allowing attackers to inject arbitrary SQL commands.

The attack can be conducted remotely over the network without requiring any authentication or user interaction, making it accessible to unauthenticated attackers. Successful exploitation can result in unauthorized access to the database, data exfiltration, modification of records, or potential escalation to further system compromise depending on the database configuration and permissions.

Root Cause

The vulnerability stems from improper input validation and the lack of parameterized queries or prepared statements when handling the ID argument in /admin/index.php. User-supplied input is directly concatenated into SQL queries without adequate sanitization or escaping, allowing malicious SQL code to be executed by the database engine.

Attack Vector

The attack is network-based and can be exploited remotely. An attacker crafts a malicious HTTP request to the /admin/index.php endpoint with a specially crafted ID parameter containing SQL injection payloads. Since no authentication is required and user interaction is not needed, the vulnerability can be exploited in an automated fashion.

The attacker manipulates the ID parameter to inject SQL syntax that alters the intended query logic. Common exploitation techniques include UNION-based injection to extract data from other tables, boolean-based blind injection to infer database contents, or time-based blind injection when direct output is not available. For detailed technical information, see the GitHub Issue Tracker and VulDB entry #347398.

Detection Methods for CVE-2026-3042

Indicators of Compromise

• Unusual SQL syntax patterns in HTTP request parameters targeting /admin/index.php
• Web application logs showing requests with SQL keywords (UNION, SELECT, OR, AND) in the ID parameter
• Database query logs indicating abnormal query structures or errors related to SQL syntax
• Unexpected database access patterns or data retrieval operations

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect SQL injection patterns in requests to /admin/index.php
• Implement intrusion detection signatures for common SQL injection payloads targeting the ID parameter
• Monitor web server access logs for suspicious requests containing encoded or obfuscated SQL keywords
• Enable database query logging and alert on queries with unexpected syntax or structure

Monitoring Recommendations

• Enable verbose logging on the web application to capture all requests to administrative endpoints
• Configure database auditing to track queries executed against sensitive tables
• Set up real-time alerting for requests matching SQL injection patterns
• Review access logs regularly for reconnaissance activity targeting the Event Management System

How to Mitigate CVE-2026-3042

Immediate Actions Required

• Restrict network access to the /admin/index.php endpoint to trusted IP addresses only
• Implement input validation to reject requests with SQL syntax in the ID parameter
• Consider taking the administrative interface offline until a patch is available
• Deploy a Web Application Firewall with SQL injection protection rules

Patch Information

No official patch has been released by the vendor at this time. Organizations should monitor the IT Source Code blog for updates and security advisories. In the absence of an official fix, implementing the workarounds below is strongly recommended. Additional technical details and vulnerability information can be found in the VulDB submission #757226.

Workarounds

• Implement parameterized queries or prepared statements in the affected code if you have access to modify the source
• Use a Web Application Firewall to filter malicious SQL injection attempts
• Restrict access to the admin panel via IP whitelisting or VPN-only access
• Implement additional authentication layers such as HTTP Basic Auth in front of the administrative interface
• Consider disabling the vulnerable functionality until a proper fix is available

# Example: Restrict access to admin panel using Apache .htaccess
# Place this in /admin/.htaccess

<Files "index.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>

# Or implement HTTP Basic Authentication
AuthType Basic
AuthName "Restricted Admin Area"
AuthUserFile /path/to/.htpasswd
Require valid-user