Key Information Affected Product Name: Complete Sales and Inventory System V1.0 Vendor Homepage: https://www.campcodes.com/ Affected File: /pages/cat_add.php Version: v1.0 Vulnerability Type Type: SQL Injection Vulnerability Cause In the file, attackers can inject malicious code via the parameter, which is directly used in SQL queries without proper sanitization or validation. Impact Attackers can exploit this SQL injection vulnerability to achieve unauthorized database access, sensitive data exposure, data tampering, full system control, and even service disruption, posing a serious threat to system security and business continuity. Description During a code review of "Complete Sales and Inventory System", a critical SQL injection vulnerability was discovered. The vulnerability stems from insufficient validation of user input for the parameter, allowing attackers to inject malicious SQL queries. Vulnerability Details and POC This vulnerability can be exploited without login or authorization Vulnerable Parameter: category Payload: Recommended Fixes 1. Use prepared statements with parameter binding. 2. Implement strict validation and filtering of user input. 3. Minimize database user privileges. 4. Conduct regular security audits.