CVE-2025-4708: Campcodes Sales And Inventory SQLI Flaw

CVE-2025-4708 Overview

A critical SQL injection vulnerability has been identified in Campcodes Sales and Inventory System version 1.0. The vulnerability exists in the /pages/sales_add.php file, where the discount parameter is improperly handled, allowing attackers to inject malicious SQL commands. This flaw can be exploited remotely without authentication, potentially enabling unauthorized database access, data manipulation, and system compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database records, or potentially gain unauthorized access to the underlying system through database-level command execution.

Affected Products

• Campcodes Sales and Inventory System 1.0

Discovery Timeline

• May 15, 2025 - CVE-2025-4708 published to NVD
• May 28, 2025 - Last updated in NVD database

Technical Details for CVE-2025-4708

Vulnerability Analysis

This SQL injection vulnerability affects the sales processing functionality within the Campcodes Sales and Inventory System. The vulnerable endpoint /pages/sales_add.php fails to properly sanitize the discount parameter before incorporating it into SQL queries. This improper input validation allows attackers to craft malicious input that breaks out of the intended SQL query structure and executes arbitrary SQL commands against the backend database.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). These weaknesses indicate a fundamental failure in input sanitization and output encoding practices within the application.

Root Cause

The root cause of this vulnerability stems from insufficient input validation and the lack of parameterized queries in the /pages/sales_add.php file. The discount parameter is directly concatenated into SQL statements without proper sanitization or use of prepared statements. This allows user-controlled input to be interpreted as SQL code rather than data, enabling injection attacks.

Attack Vector

The attack can be executed remotely over the network without requiring any authentication or user interaction. An attacker can submit specially crafted HTTP requests to the /pages/sales_add.php endpoint with malicious SQL payloads in the discount parameter. Upon processing the request, the application executes the injected SQL commands against the database, potentially allowing the attacker to read, modify, or delete data, bypass authentication mechanisms, or execute administrative operations on the database server.

The vulnerability has been publicly disclosed, with technical details available in the GitHub Issue Discussion. Additional context is provided in the VulDB CTI Report #309006.

Detection Methods for CVE-2025-4708

Indicators of Compromise

• Unusual SQL error messages in application logs related to the sales_add.php endpoint
• Anomalous requests to /pages/sales_add.php containing SQL syntax characters such as single quotes, double dashes, or UNION keywords in the discount parameter
• Unexpected database queries or access patterns originating from the web application
• Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block SQL injection patterns in HTTP requests targeting the vulnerable endpoint
• Monitor application logs for requests containing SQL injection signatures in the discount parameter
• Deploy intrusion detection systems (IDS) with SQL injection detection rules focused on the affected endpoint
• Conduct regular log analysis for failed authentication attempts or unusual database access patterns

Monitoring Recommendations

• Enable detailed logging for all requests to /pages/sales_add.php including full parameter values
• Set up alerts for requests containing common SQL injection payloads such as ' OR 1=1, UNION SELECT, or -- comment sequences
• Monitor database query logs for unexpected or malformed queries originating from the application

How to Mitigate CVE-2025-4708

Immediate Actions Required

• Restrict network access to the Campcodes Sales and Inventory System to trusted IP addresses only
• Implement input validation and sanitization for the discount parameter at the web server or WAF level
• Review and audit all database user permissions, ensuring the application uses least-privilege database accounts
• Consider taking the affected endpoint offline until a proper fix is implemented

Patch Information

At the time of this publication, no official patch has been released by the vendor. Organizations using Campcodes Sales and Inventory System 1.0 should monitor the CampCodes website for security updates. In the absence of an official patch, implementing the recommended workarounds is essential to reduce exposure risk.

Workarounds

• Deploy a web application firewall (WAF) with SQL injection protection rules to filter malicious requests before they reach the application
• Implement server-side input validation to reject requests containing SQL metacharacters in the discount parameter
• Restrict database user permissions to prevent destructive operations such as DROP, DELETE, or administrative commands
• Consider implementing network segmentation to isolate the vulnerable application from critical systems

# Example WAF rule to block SQL injection attempts (ModSecurity)
SecRule ARGS:discount "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in discount parameter',\
    log,\
    auditlog"