Bolt security

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

Error: syntax error at or near "'" PrismaClientKnownRequestError: Raw query failed ERROR: unterminated quoted string at or near "' OR" Database query returned unexpected number of rows
Error: syntax error at or near "'"PrismaClientKnownRequestError: Raw query failedERROR: unterminated quoted string at or near "' OR"Database query returned unexpected number of rows

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

  1. Use parameterized queries everywhere — Replace string concatenation with parameterized queries: prisma.$queryRaw`SELECT * FROM users WHERE id = ${userId}`
  2. Use Prisma's query builder — Let Prisma handle parameterization: prisma.user.findMany({ where: { name: { contains: searchTerm } } })
  3. 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')
  4. Use Supabase client safely — The Supabase JS client automatically parameterizes: supabase.from('users').select().eq('id', userId)
  5. Test with SQLi payloads — Enter ' OR 1=1 -- into your form fields and search boxes to check if they return unexpected results
  6. 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.

Dor Yaloz Dor Yaloz SW engineer with 6+ years of experience, I worked with React/Node/Python did projects with React+Capacitor.js for ios Supabase expert Alvin Voo Alvin Voo I’ve watched the tech landscape evolve over the last decade—from the structured days of Java Server Pages to the current "wild west" of Agentic-driven development. While AI can "vibe" a frontend into existence, I specialize in the architecture that keeps it from collapsing. My expertise lies in the critical backend infrastructure: the parts that must be fast, secure, and scalable. I thrive on high-pressure environments, such as when I had only three weeks to architect and launch an Ethereum redemption system with minimal prior crypto knowledge, turning it into a major revenue stream. What I bring to your project: Forensic Debugging: I don't just "patch" bugs; I use tools like Datadog and Explain Analyzers to map out bottlenecks and resolve root causes—like significantly reducing memory usage by optimizing complex DB joins. Full-Stack Context: Deep experience in Node.js and React, ensuring backends play perfectly with mobile and web teams. Sanity in the Age of AI: I bridge the gap between "best practices" and modern speed, ensuring your project isn't just built fast, but built to last. Caio Rodrigues 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. Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization. I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems. My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.** Anthony Akpan Anthony Akpan Developer with 8 years of experience building softwares fro startups Richard McSorley 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. Luca Liberati Luca Liberati I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture prajwalfullstack prajwalfullstack Hi Im a full stack developer, a vibe coded MVP to Market ready product, I'm here to help Matt Butler Matt Butler Software Engineer @ AWS Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. rayush33 rayush33 JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems

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Frequently 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.

Related Bolt Issues

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