CVE-2025-9744: Campcodes Loan Management System SQLi Flaw

CVE-2025-9744 Overview

CVE-2025-9744 is a SQL injection vulnerability in Campcodes Online Loan Management System 1.0. The flaw resides in the /ajax.php?action=login endpoint, where the Username parameter is not properly sanitized before being used in a SQL query. Remote attackers can manipulate the Username argument to inject arbitrary SQL statements without authentication.

The weakness is tracked under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements). A public exploit has been disclosed, increasing the likelihood of opportunistic attacks against exposed instances.

Critical Impact

Unauthenticated remote attackers can inject SQL through the login endpoint, potentially compromising loan records, borrower credentials, and administrative accounts.

Affected Products

• Campcodes Online Loan Management System 1.0
• CPE: cpe:2.3:a:campcodes:online_loan_management_system:1.0:*:*:*:*:*:*:*
• Component: campcodes:online_loan_management_system

Discovery Timeline

• 2025-08-31 - CVE-2025-9744 published to NVD
• 2026-04-29 - Last updated in NVD database

Technical Details for CVE-2025-9744

Vulnerability Analysis

The vulnerability exists in the AJAX login handler at /ajax.php?action=login. The application incorporates the Username POST parameter directly into a backend SQL query without parameterization or input validation. Attackers can submit crafted payloads through the login form to alter query logic.

Because the endpoint is the authentication entry point, it is reachable without prior credentials. Successful injection can disclose sensitive borrower data, bypass authentication using boolean or UNION-based payloads, and in some database configurations enable file read or write operations.

The EPSS score of 1.272% reflects active interest from opportunistic scanners targeting publicly disclosed PHP-based management systems.

Root Cause

The root cause is improper neutralization of special characters in the Username parameter before it is concatenated into a SQL statement. The handler does not employ prepared statements or use parameter binding through PDO or mysqli_stmt. CWE-89 classifies this as a classic input validation failure within database query construction.

Attack Vector

The attack vector is fully network accessible and requires no authentication or user interaction. An attacker sends a crafted HTTP POST request to /ajax.php?action=login with a malicious Username value containing SQL metacharacters. A typical payload uses boolean-based or UNION-based injection to extract data from the users table or to authenticate as an arbitrary user.

The vulnerability mechanism is documented in the public GitHub CVE Issue Tracking and the VulDB advisory #322043. No code examples are reproduced here; refer to the linked advisories for technical proof-of-concept details.

Detection Methods for CVE-2025-9744

Indicators of Compromise

• HTTP POST requests to /ajax.php?action=login containing SQL metacharacters such as ', ", --, UNION, SELECT, or OR 1=1 in the Username field
• Anomalous authentication success events for accounts that did not submit valid credentials
• Unexpected outbound database queries or large result sets originating from the web application user
• Web server logs showing repeated failed login attempts followed by successful access from the same source IP

Detection Strategies

• Deploy web application firewall (WAF) rules that inspect Username parameters for SQL injection signatures on the /ajax.php endpoint
• Enable database query logging and alert on UNION SELECT, INFORMATION_SCHEMA access, or stacked queries originating from the loan management service account
• Correlate HTTP request payloads with subsequent database errors recorded in PHP logs to identify probing activity

Monitoring Recommendations

• Forward web server, PHP error, and MySQL logs to a centralized SIEM for correlation
• Baseline normal login request structure and alert on payloads exceeding expected length or containing encoded SQL syntax
• Monitor for sudden spikes in 500-series HTTP responses from ajax.php, which often accompany blind injection attempts

How to Mitigate CVE-2025-9744

Immediate Actions Required

• Restrict access to the Campcodes Online Loan Management System to trusted networks or via VPN until a vendor patch is available
• Place the application behind a WAF configured with SQL injection rule sets that inspect POST bodies
• Audit the users table and application logs for evidence of unauthorized access or credential exfiltration
• Rotate all administrative and borrower credentials if exploitation is suspected

Patch Information

No official vendor patch has been published at the time of writing. Monitor the CampCodes website for updates. Organizations operating this application should evaluate replacing the affected login handler with a parameterized query implementation in-house if vendor remediation is delayed.

Workarounds

• Modify the ajax.php login handler to use prepared statements via PDO or mysqli_stmt_prepare with bound parameters
• Enforce strict server-side input validation on the Username field, allowing only alphanumeric characters and a constrained length
• Apply least-privilege permissions to the database account used by the application, removing FILE, CREATE, and administrative privileges
• Disable detailed SQL error messages in production to prevent error-based injection feedback

# Example WAF rule (ModSecurity) blocking SQL injection on the login endpoint
SecRule REQUEST_URI "@beginsWith /ajax.php" \
    "chain,phase:2,deny,status:403,id:1009744,msg:'CVE-2025-9744 SQLi attempt'"
    SecRule ARGS:Username "@detectSQLi" "t:none,t:urlDecode"