Security Review for your Svelte project
Expert security review for Svelte applications. We find and fix Svelte-specific security issues that affect production apps. From $19.
Svelte security review issues we find
Common security review problems specific to Svelte applications.
Unprotected SvelteKit server routes
SvelteKit +server.ts endpoints without authentication checks. Since these look like regular files in the routes folder, AI tools often forget they're publicly accessible API endpoints.
Sensitive data in load functions
Server load functions returning sensitive data that gets serialized to the client. Everything returned from +page.server.ts load is visible in the page's HTML source.
Missing form validation
SvelteKit form actions that process submitted data without validating fields, types, or sizes — trusting whatever the user sends.
Client-side environment variable exposure
Secrets placed in PUBLIC_ prefixed env vars (which are sent to the browser) instead of private env vars that stay on the server.
What our Svelte security review covers
Authentication & authorization
Login flows, session management, role-based access, token handling, and OAuth integrations.
API security
Input validation, rate limiting, CORS configuration, and protection against injection attacks.
Data exposure
Secrets in source code, environment variable handling, database access controls, and sensitive data in client bundles.
Infrastructure configuration
HTTPS enforcement, security headers, cookie flags, CSP policies, and server hardening.
Dependency vulnerabilities
Known CVEs in your npm/pip packages, outdated libraries, and supply chain risks.
Database security
Row-level security policies, query injection prevention, backup configuration, and access controls.
AI tools that generate Svelte code
Start with a self-serve audit
Get a professional security review of your Svelte project at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Do you offer security review for Svelte projects?
Yes. We provide security review specifically tailored to Svelte applications. We understand Svelte's ecosystem and the common issues that need attention before production use.
What Svelte security review issues do you typically find?
Common security review issues in Svelte projects include: unprotected sveltekit server routes, sensitive data in load functions, missing form validation, client-side environment variable exposure. We identify and fix all of these.
How do I get started with Svelte security review?
Start with our code audit ($19) to get a clear picture of your Svelte project's security review needs. We'll provide a prioritized report and a fixed quote for any follow-up work.
How much does Svelte security review cost?
Start with our code audit at $19 to get a prioritized report of issues. From there, security review work is scoped with a fixed quote based on your project's specific needs. No hourly billing or surprises.
Related resources
Need Svelte security review help?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.