# Improper Neutralization of Special Elements in Data Query Logic (CWE-943)

The product generates a query intended to access or manipulate data in a data store, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query.

**Stack:** JavaScript

- Prevalence: Élevée Fréquemment exploitée
- Impact: Élevé 3 règles de sévérité élevée
- Prevention: Documentée 3 exemples de correctifs

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

## Description

This covers injection attacks against NoSQL databases, ORM frameworks, and other data query mechanisms that differ from traditional SQL injection.

## Prevention

Stratégies de prévention pour NoSQL Injection basées sur 1 règles de détection Shoulder.

### JavaScript

Validate input types and sanitize MongoDB operators

## Warning Signs

- [HIGH] user input flowing into NoSQL database queries without validation

## Consequences

- Lecture des données de l'application
- Modification des données de l'application
- Contourner le mécanisme de protection

## Mitigations

- Utilisez des requêtes paramétrées pour tous les magasins de données
- Validez et assainissez les entrées avant utilisation dans les requêtes
- Appliquez le principe du moindre privilège aux comptes de base de données

## Detection

- Total rules: 3
- Languages: go, javascript, typescript, python

## Rules by Language

### Javascript (1 rules)

- **NoSQL Injection via MongoDB Queries** [HIGH]: Detects user input flowing into NoSQL database queries without validation.
  - Remediation: Validate input types and use mongo-sanitize to remove operators from user input.

```javascript
const sanitized = mongoSanitize(req.body.query);
const user = await User.findOne(sanitized);
```

Learn more: https://shoulder.dev/learn/javascript/cwe-943/nosql-injection

### Typescript (1 rules)

- **NoSQL Injection via MongoDB Queries** [HIGH]: Detects user input flowing into NoSQL database queries without validation.
  - Remediation: Validate input types and use mongo-sanitize to remove operators from user input.

```javascript
const sanitized = mongoSanitize(req.body.query);
const user = await User.findOne(sanitized);
```

Learn more: https://shoulder.dev/learn/javascript/cwe-943/nosql-injection