Prototype Security Audit

Is your vibe-coded app safe to launch?

AI builders get you a working demo fast, and leave the same security holes open again and again. Before you put real customers and real data behind it, check these.

Are AI-built apps secure?

Usually not by default. Apps built in Lovable, Bolt, v0, Cursor, and Replit commonly ship with the same two problems: the database rules that keep one customer’s information away from another were never switched on, and secret keys were left where anyone can read them. Independent research through 2025 and 2026 has documented this at scale. The fix is to have someone check it and close the gaps before you launch.

The vibe-coding security checklist

  • Anyone can read your database. The rules that stop one customer loading another customer's records were never switched on, or were set up wrong. Developers call these rules row-level security, or RLS.
  • Your secret keys are visible. Keys that should stay on your server are sitting in the code that runs in the customer's browser, or saved alongside your project, where anyone who knows where to look can read them.
  • Open back doors. Parts of your app hand out data to whoever asks, because they trust the screen to have checked first and never check for themselves.
  • Gaps in how people log in. People get logged out at the wrong times or stay logged in too long, email addresses are never confirmed, or someone can give themselves permissions they should not have.
  • Payments that can be skipped. Whether someone has actually paid is only checked on the screen in front of them, so the paywall can be walked straight past.
  • Nothing stops abuse. There is no limit on how often someone can hammer your app, so a bot or an attacker can run your bill up overnight.

Why this keeps happening

Security lives in the last 30% of a build, the part AI tools handle worst. Deciding who is allowed to see what, keeping keys hidden, and checking every request properly all depend on how the whole app fits together, and an AI assistant forgets that between one instruction and the next. The result is an app that looks finished and demos perfectly, while the database sits open underneath.

One caveat worth stating plainly, because it gets quoted carelessly. The 2025 disclosure known as CVE-2025-48757 was rated critical, but Lovable formally disputes the finding and has released a fix. It is included here because the kind of hole it describes is worth understanding, not as a claim about any tool as it stands today.

FAQ

Are apps built with Lovable, Bolt, or Cursor secure by default?

Not reliably. Independent research has repeatedly found the same two problems across AI builders: the database rules that keep customers apart were never switched on, and secret keys were left where anyone can read them. In 2025 a security disclosure known as CVE-2025-48757 documented the first of these across a large sample of Lovable-built apps, though Lovable disputes the finding and has since released a fix. A January 2026 analysis by SupaExplorer found roughly 11% of apps built this way were leaking their database keys. The tools are improving, but security is not automatic.

What is the most common vibe-coding security hole?

Database permission rules that were never switched on or were set up wrong, followed by secret keys left in the code that runs in the customer's browser. Both let an outsider read or change information they should never touch, often without any obvious sign in the app itself.

Is AI-generated code more vulnerable than hand-written code?

On average it has more security problems in it. Veracode found roughly 45% of AI-written code samples contained one of the ten most common security weaknesses, and other analyses report AI writing more of the flaw that lets an attacker run their own code inside your customer's browser. It is still worth launching with, but it needs a safety pass before real customers.

How do I check if my app is safe to launch?

Get a prototype audit. PixelFuel's free audit, back in 2 business days, reviews how people log in, your database permission rules, how your keys are stored, and whether any part of your app hands out data without checking who is asking. You get back a written report of the biggest risks and what to fix before launch.
Audit my prototype→Why the 70% wall happens

We check how people log in, your database rules, how your keys are stored, and whether anything hands out data without asking who wants it. Then we tell you exactly what to fix before launch.

Sources: NVD, CVE-2025-48757 - SupaExplorer, Vibe Coding Cybersecurity Insight Report - Veracode, 2025 GenAI Code Security Report