Input Validation and Injection Vulnerabilities in AI-Generated Code

The Prevalence of Injection Flaws

Input validation vulnerabilities represent the most common security flaw in AI-generated code. According to a 2025 report from Contrast Security:

"Input validation is often overlooked or implemented incorrectly in AI-generated code, creating openings for injection attacks that can compromise entire systems."

The AI's training on millions of code examples, many containing outdated or insecure patterns, perpetuates these vulnerabilities.

1.1.1 SQL Injection Vulnerabilities

The Problem

SQL injection remains one of the most critical vulnerabilities in AI-generated code. Research from Aikido Security found that when prompted to create database query functions, AI assistants produced vulnerable code in 68% of cases.

AI-Generated Vulnerable Code