Nivocart User Module Multiple SQL Injection Vulnerabilities Analysis and PoC

Nivocart User Management Module Vulnerability Analysis Vulnerability Overview This screenshot displays the model file (path: ) of the Nivocart open-source e-commerce system. The code contains multiple SQL injection vulnerabilities, primarily stemming from the direct concatenation of user-controllable variables (such as , , , etc.) into SQL query strings, using only the function for basic escaping, which fails to effectively defend against injection attacks. Impact Scope Affected File: Affected Functions: - : When adding a user, is directly concatenated into the INSERT statement. - : When editing a user, , , and are directly concatenated into the UPDATE statement. - : When changing the password, the parameter is directly concatenated into the UPDATE statement. - : When modifying the verification code, the and parameters are directly concatenated into the UPDATE statement. - / : When querying a user, the parameter is directly concatenated into the SELECT statement. - : When querying by username, the parameter is directly concatenated into the SELECT statement. - : When querying by email, the parameter is directly concatenated into the SELECT statement. - : When querying by verification code, the parameter is directly concatenated into the SELECT statement. - : When querying user groups, the and parameters are directly concatenated into the SELECT statement. - : When verifying the password, the , , and parameters are directly concatenated into the SELECT statement. - / / : When counting users, the relevant parameters are directly concatenated into the SELECT statement. Remediation Plan 1. Use Prepared Statements: Convert all SQL queries to use PDO or MySQLi prepared statements, passing variables via parameter binding to fundamentally eliminate SQL injection. 2. Input Validation and Filtering: Apply strict type checking and whitelist filtering to all user inputs to ensure they conform to expected formats. 3. Principle of Least Privilege: Grant only necessary permissions to database accounts, avoiding the use of high-privilege accounts for executing queries. 4. Error Information Hiding: Disable detailed error output in production environments to prevent the leakage of database structure. POC Code Example (Based on the Vulnerability Points in the Screenshot) > Note: The POC above is solely for demonstrating the vulnerability principle; actual exploitation requires specific environment and context. It is recommended to immediately upgrade to the official patched version or manually apply the remediation measures mentioned above.

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Nivocart User Module Multiple SQL Injection Vulnerabilities Analysis and PoC

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