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🔐 Securing Your Ruby on Rails Application: Tips, Tricks, and Complete Guide! 🚀

Lakhveer Singh Rajput
4 min readOct 9, 2024

Security is paramount when developing any web application, and Ruby on Rails is no exception. Hackers and malicious actors constantly look for vulnerabilities in web apps, so it’s crucial to stay one step ahead. In this blog, we’ll dive into common threats and security best practices you can use to fortify your Rails application. Ready to secure your app? Let’s jump in! ⚔️

🕵️‍♂️ Common Security Threats in Rails Applications

1. SQL Injection 💉

SQL injection is one of the oldest and most common attacks where an attacker inserts malicious SQL code through input fields.

Example Attack: If an attacker inputs "1; DROP TABLE users;" in a form field that is vulnerable to SQL injection, they could potentially delete all records in your users table!

Solution: Use Active Record’s built-in methods to automatically sanitize inputs. Avoid writing raw SQL queries unless you thoroughly sanitize them.

# Bad Practice - Unsafe
User.where("name = '#{params[:name]}'")

# Good Practice - Safe
User.where(name: params[:name])

2. Cross-Site Scripting (XSS) 🎭

XSS attacks happen when an attacker injects malicious scripts into your site, usually through…

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Lakhveer Singh Rajput
Lakhveer Singh Rajput

Written by Lakhveer Singh Rajput

Ruby on Rails enthusiast, book lover and DevOps explorer. Follow me for insights on coding, book recommendations, and bridging development with operations.🚀📚

Responses (1)

What are your thoughts?

Rails 8 introduces `expect` that replaces `permit & require` when processing parameters in the controller after form submission. This makes it safer and also cover cases that are not intuitive and could lead to a mss configuration that voids the protection.

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