SEC-008high SeverityHardcoded Secrets & Credential Exposure
Transactional Email Service Keys (SendGrid/Resend) Protected
Email sending logic is often placed in frontend utilities or webhook helpers with hardcoded re_ or SG. keys.
1-Click Fix Prompt for Cursor & Claude Code
Review my codebase for "Transactional Email Service Keys (SendGrid/Resend) Protected" (SEC-008). Issue: Email sending logic is often placed in frontend utilities or webhook helpers with hardcoded re_ or SG. keys. Remediation required: Gate all transactional email sending through a server endpoint with verified session authentication. 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
Email sending logic is often placed in frontend utilities or webhook helpers with hardcoded re_ or SG. keys.
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: Transactional Email Service Keys (SendGrid/Resend) Protected
// Leaking sensitive key in client-callable code
export const STRIPE_KEY = "sk_live_51OzRealProductionKey12345";
export async function checkout() {
// Client bundle exposes secret key to Chrome DevTools
}Launch-Ready Fix
// Production-ready fix for: Transactional Email Service Keys (SendGrid/Resend) Protected
// Stored strictly in server-side environment variable
const stripeSecretKey = process.env.STRIPE_SECRET_KEY;
if (!stripeSecretKey) {
throw new Error("Missing STRIPE_SECRET_KEY in server environment");
}
// Invoked strictly inside server route or Server Action
export const stripe = new Stripe(stripeSecretKey);Remediation & Verification Checklist
Remediation: Gate all transactional email sending through a server endpoint with verified session authentication.
- Search your codebase for pattern matching "Transactional Email Service Keys (SendGrid/Resend) Protected".
- Apply the recommended remediation: Gate all transactional email sending through a server endpoint with verified session authentication.
- Run local build and test commands to ensure no regressions.
- Verify in your browser or with curl that the issue is resolved.
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