# Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') (CWE-95)

The product receives input from an upstream component, but it does not neutralize code syntax before using the input in a dynamic evaluation call.

- Prevalence: High No Shoulder rules
- Impact: High OWASP Top 10 #3
- Prevention: See MITRE External reference

**OWASP:** Injection (A03:2021-Injection) - #3

## Description

When user input is passed to eval() or similar functions without sanitization, attackers can inject arbitrary code that will be executed with the application's privileges.

## Prevention

## Consequences

- Execute Unauthorized Code
- Read Application Data
- Modify Application Data

## Mitigations

- Avoid using eval() and similar dynamic code execution functions
- Use safer alternatives like JSON.parse() for data parsing
- If eval is necessary, use strict input validation and sandboxing