# Preventing SQL injection attacks in Node.js

DevFeed: [Preventing SQL injection attacks in Node.js](<https://devfeed.tech/articles/preventing-sql-injection-attacks-in-node-js-8051.md>)

Original publisher: [Read original article](<https://snyk.io/blog/preventing-sql-injection-attacks-node-js/>)

Author: Lucien Chemaly

Published: 2024-02-20T05:00:00Z

Content type: article

Language: en

Sources: [Blog RSS Feed | Snyk](<https://devfeed.tech/sources/blog-rss-feed-snyk.md>)

Topics: [Node.js](<https://devfeed.tech/topics/node-js.md>), [Security](<https://devfeed.tech/topics/security.md>), [SQL](<https://devfeed.tech/topics/sql.md>), [Express](<https://devfeed.tech/topics/express.md>), [PostgreSQL](<https://devfeed.tech/topics/postgresql.md>), [Sanitization](<https://devfeed.tech/topics/sanitization.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [web applications](<https://devfeed.tech/topics/web-applications.md>)

Tags: [acquisition](<https://devfeed.tech/tags/acquisition.md>), [application-security](<https://devfeed.tech/tags/application-security.md>), [attacks](<https://devfeed.tech/tags/attacks.md>), [blog](<https://devfeed.tech/tags/blog.md>), [code-security](<https://devfeed.tech/tags/code-security.md>), [developer](<https://devfeed.tech/tags/developer.md>), [draftdotdev](<https://devfeed.tech/tags/draftdotdev.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [node](<https://devfeed.tech/tags/node.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [postgresql](<https://devfeed.tech/tags/postgresql.md>), [security](<https://devfeed.tech/tags/security.md>), [server](<https://devfeed.tech/tags/server.md>), [snyk](<https://devfeed.tech/tags/snyk.md>), [snyk-code](<https://devfeed.tech/tags/snyk-code.md>), [snyk-open-source](<https://devfeed.tech/tags/snyk-open-source.md>), [sql](<https://devfeed.tech/tags/sql.md>), [validation](<https://devfeed.tech/tags/validation.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>)

## AI overview

This article explains how SQL injection attacks affect Node.js applications when user input is incorporated into SQL queries without proper validation, sanitization, or safe query construction. It demonstrates the issue with an Express application connected to PostgreSQL and introduces ways to protect applications from unauthorized access and data leakage.

## Source excerpt

In this article, you'll learn more about why SQL injection attacks pose a significant threat and how to shield your Node.js applications against them.