CVE-2025-6567: Campcodes Recruitment System SQLi Flaw

CVE-2025-6567 Overview

A critical SQL Injection vulnerability has been identified in Campcodes Online Recruitment Management System version 1.0. The vulnerability exists in the view_application.php file located within the /Recruitment/admin/ directory. Improper sanitization of the ID parameter allows remote attackers to inject malicious SQL queries, potentially enabling unauthorized database access, data manipulation, and information disclosure.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive recruitment data, modify database records, or potentially gain unauthorized administrative access to the recruitment management system.

Affected Products

• Campcodes Online Recruitment Management System 1.0

Discovery Timeline

• 2025-06-24 - CVE-2025-6567 published to NVD
• 2025-06-27 - Last updated in NVD database

Technical Details for CVE-2025-6567

Vulnerability Analysis

This SQL Injection vulnerability stems from improper input validation in the view_application.php file. When processing application viewing requests, the ID parameter is passed directly into SQL queries without proper sanitization or parameterization. This allows attackers to craft malicious input that modifies the intended SQL query logic.

The vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The flaw enables remote exploitation without authentication requirements, making it accessible to unauthenticated attackers over the network.

The exploit has been publicly disclosed, increasing the risk of widespread exploitation against vulnerable deployments. Organizations using this recruitment management system should treat this as a high-priority security concern due to the sensitive nature of recruitment data typically stored in such systems, including personal identifiable information (PII) of job applicants.

Root Cause

The root cause of this vulnerability is the failure to properly validate, sanitize, or parameterize user-supplied input before incorporating it into SQL queries. The ID parameter in view_application.php is directly concatenated into database queries without the use of prepared statements or adequate input filtering, allowing attackers to inject arbitrary SQL syntax.

Attack Vector

The attack can be initiated remotely over the network. An attacker can manipulate the ID parameter in HTTP requests to the Recruitment/admin/view_application.php endpoint. By injecting SQL metacharacters and malicious query fragments, attackers can:

• Extract sensitive data from the database through UNION-based or error-based injection techniques
• Bypass authentication mechanisms to access restricted administrative functions
• Modify or delete database records containing applicant information
• Potentially execute operating system commands if database permissions allow

The vulnerability requires no authentication and can be exploited with low complexity, making it an attractive target for automated scanning tools and opportunistic attackers. Technical details and proof-of-concept information have been documented in the GitHub Issue Discussion.

Detection Methods for CVE-2025-6567

Indicators of Compromise

• Unusual or malformed requests to /Recruitment/admin/view_application.php with suspicious ID parameter values
• Database query logs showing SQL injection patterns such as UNION SELECT, single quotes, or comment sequences (--, #)
• Unexpected database errors or application exceptions related to SQL syntax
• Access logs showing repeated requests to the vulnerable endpoint with varying ID values

Detection Strategies

• Deploy Web Application Firewalls (WAF) with SQL injection detection rules monitoring the /Recruitment/admin/ directory
• Implement intrusion detection signatures that alert on common SQL injection patterns in HTTP parameters
• Enable database query logging and monitor for anomalous query patterns or unauthorized data access attempts
• Review application logs for error messages indicating SQL parsing failures or injection attempts

Monitoring Recommendations

• Monitor HTTP request logs for the view_application.php endpoint, specifically examining the ID parameter for injection patterns
• Set up alerts for database errors originating from the recruitment management application
• Implement real-time monitoring of database access patterns to detect unauthorized data extraction
• Review authentication logs for signs of privilege escalation following SQL injection attempts

How to Mitigate CVE-2025-6567

Immediate Actions Required

• Restrict access to the /Recruitment/admin/ directory to trusted IP addresses only using firewall rules or web server configuration
• Consider taking the affected application offline until a security patch is available or input validation is implemented
• Review database logs for signs of exploitation and assess potential data exposure
• Implement WAF rules to block common SQL injection payloads targeting the ID parameter

Patch Information

As of the last update on 2025-06-27, no official patch has been released by Campcodes for this vulnerability. Organizations should monitor the CampCodes website for security updates and consider implementing the workarounds below until an official fix is available. Additional technical details are available through VulDB #313739.

Workarounds

• Implement input validation on the ID parameter to accept only numeric values using server-side validation
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules specific to this endpoint
• Restrict administrative access to the application using network-level controls such as VPN or IP whitelisting
• If source code access is available, refactor the vulnerable query to use prepared statements with parameterized queries
• Consider disabling the view_application.php functionality temporarily if it is not critical to operations

# Apache .htaccess example to restrict admin directory access
<Directory "/var/www/html/Recruitment/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>