SQL Injection in Bolt AI-Generated Database Queries
Your Bolt.new application contains SQL injection vulnerabilities in its database queries. The AI-generated code concatenates user input directly into SQL strings instead of using parameterized queries, allowing attackers to manipulate your database.
An attacker can exploit this by entering specially crafted input into form fields, search boxes, or URL parameters. For example, entering ' OR 1=1 -- into a login form could bypass authentication entirely, or entering '; DROP TABLE users; -- could delete your entire users table.
This vulnerability is particularly dangerous because it can go completely unnoticed during normal use. The app works perfectly with legitimate input, but an attacker with basic SQL knowledge can read, modify, or delete any data in your database.
Error Messages You Might See
Common Causes
- String concatenation in queries — Bolt generated code like `SELECT * FROM users WHERE id = '${userId}'` instead of using parameterized queries
- Raw SQL with template literals — Using Prisma's $queryRawUnsafe or Supabase's rpc with unsanitized user input
- Dynamic table or column names — Building queries with user-controlled table names or sort columns without whitelisting
- Search functionality with LIKE — Search queries built by concatenating user input: WHERE name LIKE '%${searchTerm}%'
- Filter parameters passed directly — URL query parameters inserted into WHERE clauses without sanitization
How to Fix It
- Use parameterized queries everywhere — Replace string concatenation with parameterized queries: prisma.$queryRaw`SELECT * FROM users WHERE id = ${userId}`
- Use Prisma's query builder — Let Prisma handle parameterization: prisma.user.findMany({ where: { name: { contains: searchTerm } } })
- Whitelist dynamic identifiers — If you need dynamic column names, validate them against an allowlist: const allowed = ['name', 'date', 'price']; if (!allowed.includes(sortBy)) throw new Error('Invalid sort')
- Use Supabase client safely — The Supabase JS client automatically parameterizes: supabase.from('users').select().eq('id', userId)
- Test with SQLi payloads — Enter ' OR 1=1 -- into your form fields and search boxes to check if they return unexpected results
- Add input validation — Validate and sanitize all user inputs with a library like zod or validator.js before they reach any query
Real developers can help you.
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
Yovel Cohen
I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
Simon A.
I'm a backend developer building APIs, emulators, and interactive game systems. Professionally, I've developed Java/Spring reporting solutions, managed relational and NoSQL databases, and implemented CI/CD workflows.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Rudra Bhikadiya
I build and fix web apps across Next.js, Node.js, and DBs.
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Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
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PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
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I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
Bastien Labelle
Full stack dev w/ 20+ years of experience
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
Is Prisma safe from SQL injection by default?
Prisma's query builder (findMany, create, etc.) is safe by default. However, Prisma's $queryRaw requires tagged template literals for safety. Using $queryRawUnsafe or string concatenation with $queryRaw bypasses protection.
How can I test my app for SQL injection?
Enter these payloads in text fields: ' OR 1=1 --, '; DROP TABLE test; --, and ' UNION SELECT null, null --. If the app behaves unexpectedly (returns all records, errors with SQL syntax), you have a vulnerability.