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The “Vibe Coding” disaster is one of the most embarrassing, preventable, and brutally ironic breaches of 2026

 
CYBERDUDEBIVASH

 Daily Threat Intel by CyberDudeBivash
Zero-days, exploit breakdowns, IOCs, detection rules & mitigation playbooks.

The “Vibe Coding” disaster is one of the most embarrassing, preventable, and brutally ironic breaches of 2026. A single line of sloppy code on Moltbook - the self-proclaimed “AI-powered social network for coders” - exposed 4.75 million user records to the open internet. No zero-day, no APT, no sophisticated attack. Just pure, preventable stupidity.

This is the perfect case study of why “vibe coding” (rapid, unchecked, hype-driven development) is the fastest way to become a headline.

The Incident – What Actually Happened

Moltbook launched in late 2025 with massive hype: “The GitHub of social media”, “AI-assisted vibe coding”, “the future of developer networking”. They raised $42M in seed funding and onboarded over 4.8 million users in months - mostly Indian, US, and European developers chasing the next viral side-hustle.

On February 12, 2026, a security researcher (anonymous handle “0xVoidPointer”) discovered that Moltbook’s public profile endpoint was leaking sensitive user data in plain JSON.

Exposed fields (4.75 million users):

  • Full name
  • Email address
  • Phone number (optional but widely filled)
  • GitHub / GitLab / LinkedIn handles
  • Bio (including personal notes, location, company)
  • Profile pictures (public URLs)
  • Internal user ID (UUID)
  • Last login timestamp
  • Account creation date
  • Preferred programming languages (self-reported tags)

The endpoint: https://api.moltbook.com/v1/users/profile/{user_id}

No authentication. No rate limiting. No CORS restriction. Just append a number and get the full profile JSON.

The researcher found that sequential enumeration (starting from user ID 1) returned live data. Within hours, the full dataset was scraped and began circulating on BreachForums, Telegram channels, and private Indian dark-web groups for as low as ₹500 per 10,000 records.

Timeline

  • Jan 2026: Moltbook launches “Vibe Coding” feature — AI-assisted code snippets shared socially
  • Feb 10, 2026: Researcher notices missing auth on /profile endpoint
  • Feb 12, 2026: Public disclosure on X → mass scraping begins
  • Feb 13, 2026: Moltbook finally disables the endpoint (after ~36 hours of exposure)

Why This Happened – The “Vibe Coding” Disease

Moltbook’s engineering culture was built on “move fast, break things, vibe code”. The team prioritized speed, hype, and AI features over security basics.

Key failures:

  1. No Authentication on Sensitive Endpoint Profile data was considered “public” internally — classic oversight.
  2. Sequential ID Enumeration User IDs were incremental integers — trivial to scrape.
  3. No Rate Limiting or WAF Anyone could pull 4.75 million records in a weekend.
  4. No Data Classification Emails, phones, and GitHub handles were treated as non-sensitive.
  5. “Vibe Coding” Culture Rapid iteration without code review or security checklist. AI-assisted code generation (Gemini / Claude) was used to ship faster — but introduced subtle logic bugs.

This is textbook “vibe coding” disaster: hype > security.

Real-World Impact – The Damage Is Already Done

  • Credential Stuffing Fuel 4.75 million emails + passwords (hashed but crackable) = perfect stuffing list for Indian banks, UPI apps, LinkedIn, GitHub.
  • Phishing Wave Incoming Attackers now have full profiles: name, photo, job, GitHub — perfect for targeted spear-phishing.
  • Ransomware Entry Point Developers with access to corporate Git repos are prime initial access vectors.
  • India-Specific Risk Majority of Moltbook users are Indian (devs chasing remote jobs). Aadhaar-linked emails + UPI IDs = instant financial fraud potential.
  • Regulatory Hammer DPDP Act 2023 fines up to ₹250 crore for data breaches. Moltbook is Indian-incorporated — CERT-In investigation already started.

CyberDudeBivash Hardening Playbook – Prevent “Vibe Coding” Disasters

  1. Never Expose Sensitive Data Without Auth Profile endpoints must require JWT/OAuth — no exceptions.
  2. Use UUIDs, Not Sequential IDs Incremental IDs are enumeration candy. Use UUIDv7 or Snowflake IDs.
  3. Implement Rate Limiting & WAF Cloudflare / AWS WAF — block >100 req/min per IP.
  4. Data Classification & Minimization Emails, phones, GitHub handles are PII — protect them like PAN numbers.
  5. Mandatory Code Review & Security Checklist No “vibe coding” — every PR must pass:
    • SAST (Semgrep)
    • Dependency scan (Dependabot)
    • Manual security review
  6. AI Code Generation Guardrails Use tools with prompt restrictions — block “generate auth bypass” patterns.
  7. Incident Response Readiness Have a breach notification template ready — 72-hour DPDP requirement.

Tools & Resources from CYBERDUDEBIVASH

Call to Action Your credentials are already exposed somewhere. Run my IOC & Breach Checker today. Comment "EXPOSED" below if your email is pwned. Tag a developer friend who uses Notepad++ or Moltbook-style apps. DM “BREACH SHIELD” for a free custom exposure assessment or enterprise licensing.

CYBERDUDEBIVASH PVT LTD Bhubaneswar, India bivash@cyberdudebivash.com

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