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
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.
Taufan
I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms.
Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact.
Matt Butler
Software Engineer @ AWS
zipking
I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify.
As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value.
Daniel Vázquez
Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting.
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.
Anthony Akpan
Developer with 8 years of experience building softwares fro startups
Jacek Rozanski
Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004).
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What I bring to AI-built apps:
- I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0
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Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code.
Based in Poland (CET timezone). Available for async work and calls during EU/US business hours.
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.
Prakash Prajapati
I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale.
Franck Plazanet
I am a Strategic Engineering Leader with over 8 years of experience building high-availability enterprise systems and scaling high-performing technical teams. My focus is on bridging the gap between complex technology and business growth.
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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.