AUTH-010critical SeverityBroken Authentication & Access Controls
No Role Escalation Flaws in User Registration
AI endpoints accept req.body directly into user creation, allowing users to pass role: "admin" in the signup JSON payload.
1-Click Fix Prompt for Cursor & Claude Code
Review my codebase for "No Role Escalation Flaws in User Registration" (AUTH-010). Issue: AI endpoints accept req.body directly into user creation, allowing users to pass role: "admin" in the signup JSON payload. Remediation required: Never accept role or permission fields from user input. Default new accounts strictly to standard user privileges on the server. Please: 1. Locate any occurrences of this issue across my repository. 2. Refactor the code to follow production standards without breaking existing functionality. 3. Provide a clear command or step to test and verify the fix.
Why AI Assistants Write This Bug
AI endpoints accept req.body directly into user creation, allowing users to pass role: "admin" in the signup JSON payload.
AI code generation prioritizes immediate syntax execution over production edge cases. When an assistant hits an undefined variable or strict type error, it frequently takes the path of least resistance rather than implementing standard pre-launch security patterns.
Code Comparison
Common AI Code PatternVulnerable
// Vulnerable AI-generated pattern for: No Role Escalation Flaws in User Registration
// Insecure route handler trusting body user ID (IDOR risk)
export async function POST(req: Request) {
const { userId, newEmail } = await req.json();
// BUG: Any user can modify any other user record!
await db.user.update({ where: { id: userId }, data: { email: newEmail } });
return Response.json({ success: true });
}Launch-Ready Fix
// Production-ready fix for: No Role Escalation Flaws in User Registration
// Protected route deriving identity from verified session
export async function POST(req: Request) {
const session = await auth();
if (!session?.user?.id) {
return Response.json({ error: "Unauthorized" }, { status: 401 });
}
const { newEmail } = await req.json();
// Scoped strictly to authenticated session user ID
await db.user.update({ where: { id: session.user.id }, data: { email: newEmail } });
return Response.json({ success: true });
}Remediation & Verification Checklist
Remediation: Never accept role or permission fields from user input. Default new accounts strictly to standard user privileges on the server.
- Search your codebase for pattern matching "No Role Escalation Flaws in User Registration".
- Apply the recommended remediation: Never accept role or permission fields from user input. Default new accounts strictly to standard user privileges on the server.
- Run local build and test commands to ensure no regressions.
- Verify in your browser or with curl that the issue is resolved.
Audit All 108 Checks in One Click
Checking items one by one takes hours. Let us do it in 2 minutes.
With the Founder Pass ($15 one-time), we automatically scan your repository for this issue, plus all other 107 launch checks across secrets, Stripe webhooks, Supabase RLS, and security headers.