CVE-2025-63939: SQL Injection in Grocery Store Management System PHP App

CVE-2025-63939 Vulnerability Summary Vulnerability Overview Vulnerability Type: SQL Injection Vulnerability ID: CVE-2025-63939 CVSS Score: 9.8 (Critical) Affected Component: Root Cause: The POST parameter is directly concatenated into the SQL query without filtering or parameterization. Exploitation Methods: Boolean-based blind and in-band SQL injection. Impact Scope Affected Product: GROCERY-STORE-MANAGEMENT-SYSTEM-USING-PHP-AND-MYSQL-PHPMYADMIN (version 1.0) Impact Consequences: Confidentiality: High (can extract database contents, including schema, table data, credentials). Integrity: High (can modify or delete database records). Availability: High (may lead to destructive SQL operations). Confirmed Impact: Successfully executed returning , confirming out-of-band data leakage. Remediation Measures 1. Parameterized Queries: Replace direct string concatenation with PDO or MySQLi prepared statements. 2. Input Validation: Apply strict whitelist validation on (e.g., allow only alphanumeric characters). 3. Principle of Least Privilege: Database user used by the web application should have only the minimum necessary privileges. 4. Query Timeout: Set database query timeout to limit blind injection attacks. 5. WAF Deployment: Deploy a Web Application Firewall as a temporary compensating control. 6. Error Suppression: Disable detailed SQL error output in production environments. Technical Analysis and POC Vulnerable Code Example: Exploit Payload: The attacker constructs a payload to break out of the string context and introduce a boolean expression: By observing the number of records returned by the server (records present vs. empty result), the attacker confirms that the SQL expression was executed on the server side.

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CVE-2025-63939: SQL Injection in Grocery Store Management System PHP App

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