Description
SQL injection (SQLi) refers to an injection attack wherein an attacker can execute malicious SQL statements that control a web application's database server.
Remediation
Use parameterized queries when dealing with SQL queries that contain user input. Parameterized queries allow the database to understand which parts of the SQL query should be considered as user input, therefore solving SQL injection.
References
Prevent SQL injection vulnerabilities in PHP applications and fix them
Related Vulnerabilities
WordPress 4.4.x Possible SQL Injection Vulnerability (4.4 - 4.4.11)
WordPress Plugin MukioPlayer SQL Injection (1.6)
WordPress Plugin WP Maps-Display Google Maps Perfectly with Ease SQL Injection (4.0.4)
WordPress Plugin Wp-ImageZoom SQL Injection (1.0.7)
WordPress Plugin PayPlus Payment Gateway SQL Injection (7.0.7)