CVE-2025-5676: Campcodes Recruitment System SQLi Flaw

CVE-2025-5676 Overview

A critical SQL injection vulnerability has been identified in Campcodes Online Recruitment Management System version 1.0. This vulnerability exists in the administrative login functionality, specifically within the /admin/ajax.php?action=login endpoint. By manipulating the Username parameter, an unauthenticated attacker can inject malicious SQL queries, potentially gaining unauthorized access to sensitive database contents, bypassing authentication mechanisms, or compromising the integrity of the underlying database.

Critical Impact

This SQL injection vulnerability allows remote unauthenticated attackers to manipulate database queries through the login form, potentially leading to authentication bypass, data exfiltration, or complete database compromise.

Affected Products

• Campcodes Online Recruitment Management System 1.0
• All installations using the vulnerable /admin/ajax.php login endpoint

Discovery Timeline

• 2025-06-05 - CVE-2025-5676 published to NVD
• 2025-06-10 - Last updated in NVD database

Technical Details for CVE-2025-5676

Vulnerability Analysis

This vulnerability represents a classic SQL injection attack surface in a web application's authentication mechanism. The administrative login functionality at /admin/ajax.php?action=login fails to properly sanitize user-supplied input in the Username parameter before incorporating it into SQL queries. This allows attackers to inject arbitrary SQL syntax that gets executed against the backend database.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection vulnerabilities where special characters or commands are not properly filtered before being passed to an interpreter. The exploit has been publicly disclosed, increasing the risk of active exploitation against vulnerable installations.

Root Cause

The root cause of this vulnerability is insufficient input validation and lack of parameterized queries in the login processing logic. The application directly concatenates user-supplied input from the Username field into SQL statements without proper sanitization or use of prepared statements. This allows an attacker to break out of the intended query structure and inject their own SQL commands.

Attack Vector

The attack can be initiated remotely over the network without requiring any authentication or user interaction. An attacker targets the administrative login page at /admin/ajax.php?action=login and submits specially crafted input in the Username field containing SQL injection payloads. Successful exploitation could allow an attacker to:

• Bypass authentication and gain administrative access
• Extract sensitive data from the database including user credentials
• Modify or delete database records
• Potentially achieve remote code execution depending on database configuration and privileges

The vulnerability is exploited by injecting SQL metacharacters and commands through the Username parameter. Common attack patterns include using single quotes to escape string contexts, UNION-based queries for data extraction, and boolean-based blind injection techniques. Detailed technical information is available in the GitHub Issue Discussion and VulDB entry #311164.

Detection Methods for CVE-2025-5676

Indicators of Compromise

• Unusual HTTP POST requests to /admin/ajax.php?action=login containing SQL syntax characters such as single quotes, double dashes, UNION keywords, or OR statements
• Database error messages in application logs indicating malformed SQL queries
• Multiple failed login attempts followed by successful authentication from the same source IP
• Unexpected database queries or data access patterns in database audit logs

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in requests to /admin/ajax.php
• Configure intrusion detection systems (IDS) to alert on requests containing common SQL injection payloads targeting the login endpoint
• Enable detailed logging for the administrative login functionality and monitor for anomalous patterns
• Deploy database activity monitoring to detect unauthorized queries or data exfiltration attempts

Monitoring Recommendations

• Review web server access logs for requests to /admin/ajax.php containing encoded or obfuscated SQL injection payloads
• Monitor database performance metrics for unusual query execution patterns that may indicate injection attacks
• Set up alerts for multiple authentication failures followed by successful logins
• Implement application-level logging to capture all login attempts with sanitized parameter values for forensic analysis

How to Mitigate CVE-2025-5676

Immediate Actions Required

• Restrict access to the administrative panel (/admin/) to trusted IP addresses only using firewall rules or .htaccess configuration
• Deploy a Web Application Firewall with SQL injection protection rules enabled
• Consider temporarily disabling the affected login functionality until a patch is available
• Conduct a thorough security audit of all user input handling in the application

Patch Information

As of the last update on 2025-06-10, no official vendor patch has been released for this vulnerability. Organizations using Campcodes Online Recruitment Management System should monitor the Camp Codes website for security updates. Additional vulnerability details and community discussion can be found in the VulDB submission #590134.

Workarounds

• Implement input validation at the web server level using mod_security or similar WAF solutions to filter SQL injection patterns
• Use network segmentation to isolate the application server from critical database resources
• Apply the principle of least privilege to database accounts used by the application
• Consider implementing additional authentication layers such as IP whitelisting or multi-factor authentication for administrative access

# Example .htaccess configuration to restrict admin access by IP
<Directory "/var/www/html/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>