BBLABS v2BBLABSv2
>Home>Labs
>New labs

Latest 3 labs

Loading…

View all labs →
>Creators>Ranking
>Learn

Learn bug bounty

AcademyGuides, cheatsheets and glossaryVulnerabilitiesXSS, SQLi, IDOR, SSRF and moreHunter RoadmapYour step-by-step bug bounty pathBlogBug bounty guides and news
>Business>Pricing
ES
Log inLog in
>Home>Labs>New labs>Creators>Ranking>Learn>Business>Pricing
ES
Sign inCreate account
  1. Home
  2. Labs
  3. Advanced IDOR Challenges
HardVDP1h

Advanced IDOR Challenges

By @gorka

Plataforma corporativa con 8 desafios progresivos de IDOR: desde IDOR directo hasta Type Juggling, Array Injection, Body Parameter Override, Predictable IDs, HTTP Parameter Pollution, Mass Assignment y Transfer Intent Manipulation.

256 views10 completedUpdated Aug 2026
Log in to start

Learn to find this bug

A real bug bounty report, reproduced for you to practice.

Create your account and practice real bugs that got paid. Download the environment, find it and learn the exact technique — your path to your first bounty.

hunters training
650

hunters training

labs from real reports
50

labs from real reports

completions
380

completions

in bounties practiced
$200,000

in bounties practiced

40 flags captured this week
Create account
I already have an account

Access to all labs · no commitment · cancel anytime

Hunters who solved it· 8

flyingwhales1
@flyingwhales9 days ago
kaneki2
@kaneki21 days ago
AL3
@alex.burja.200029 days ago
benjaminnocervigni
@benjaminnocervigniJun 2026
pl4nkton
@pl4nktonJun 2026
w4tchw0lf
@w4tchw0lfJun 2026
CR
@crashMay 2026
MA
@maxioliveraMay 2026

Objectives

1
Completar los 8 niveles de IDOR progresivos
2
Aprender diferentes tecnicas de bypass de autorizacion
3
Explotar Type Juggling, Array Injection y HPP

Information

Difficulty
Hard
Duration
1h
Bounty
VDP
Completed
10
Creator
gorka@gorka
Updated
Aug 2026

Download the environment

Reproduce it and find the bug yourself

Create account

Tools

Burp Suitecurl

Prerequisites

  • IDOR basico
  • Manipulacion de parametros HTTP
  • Type juggling en JavaScript

Tags

IDOR

Achievement you'll earn

Solve this lab to unlock this shareable achievement

BBLABS.ESLab Solved
HardVDP
// achievement_unlocked

Advanced IDOR Challenges

IDOR
Aug 2026
gorka
solved_by@gorkaMember since Mar 2026
bblabs.es// real bug bounty practice

Community writeups

Credenciales

Usuario Contrasena Rol
alex_intern alex123 intern
elena_ceo elena2024 CEO
miguel_cto miguel123 CTO

Despliegue

# Opcion 1: autodeploy
./autodeploy.sh

# Opcion 2: manual
docker compose up --build

# Acceder
http://localhost:2100

Compatible con macOS, Linux y Windows (Docker Desktop / WSL).

Para parar:

./autodeploy.sh destroy
# o: docker compose down -v

Contenido del Lab

La aplicacion

NexusHub es una plataforma corporativa con documentos confidenciales, transferencias y gestion de empleados. Cada nivel introduce una tecnica de IDOR mas avanzada.

La vulnerabilidad

8 endpoints con diferentes variantes de IDOR: directo, type juggling (number vs string), array injection ([id]), body override, IDs predecibles, HPP (?id=1&id=2), mass assignment en updates, y manipulacion de intents de transferencia.

Cadena de ataque

Nivel 1: IDOR directo en ID
Nivel 2: Type juggling (enviar numero en vez de string)\nNivel 3: Array injection [userId]
Nivel 4: Body parameter override
Nivel 5: IDs predecibles/secuenciales
Nivel 6: HTTP Parameter Pollution
Nivel 7: Mass Assignment en update
Nivel 8: Transfer intent manipulation

Solucion interactiva

Accede a /writeup dentro de la aplicacion para una guia paso a paso con botones interactivos.


Flag

(cada challenge tiene su propia flag)

Remediacion

  1. Validar autorizacion en cada acceso a recursos
  2. No confiar en el tipo de dato del parametro
  3. Usar UUIDs en vez de IDs secuenciales
  4. Validar que el recurso pertenece al usuario autenticado

Contact

Practice, learn and hack

Bug bounty practice platform with labs based on real reports. Learn ethical hacking in safe environments.

contact→

Follow us

YouTube
@0xGorka
X
@gorkaelbochi
LinkedIn
gorka-el-bochi-morillo
Instagram
@_.gorkaaa.b
Email
team@bblabs.es

Access every lab from €7.99/mo

New labs every week. Cancel anytime.

Create account

BBLabs is the bug bounty labs platform where you learn bug bounty with real vulnerabilities extracted from paid reports on HackerOne, Bugcrowd and Intigriti. Here you practice web hacking —XSS, SQLi, IDOR, SSRF, CSRF and more— in downloadable environments, capture the flag, read the writeup and apply the technique on active bug bounty programs.

BBLabs is the alternative to HackTheBox, TryHackMe and PentesterLab for those who want to practice bug bounty with real reports instead of artificial CTFs. From €7.99/mo, no commitment.

→ Learn bug bounty from scratch→ How to do bug bounty step by step→ Real bug bounty reports→ BBLabs for companies and academiesLabsAcademyVulnerabilitiesToolsHunter rankingXSS labsIDOR labsSSRF labsCSRF labsHackTheBox alternativeHack4u alternativeTryHackMe alternativePortSwigger alternativePentesterLab alternativeBug Bounty Labs comparisonHackerOne to practiceOffSec / OSCP alternativeINE / eWPT alternativeHTB Academy alternativeDVWA alternativeJuice Shop alternativeVulnHub alternativePentesterAcademy alternativeRoot-Me alternativeHackTheBox vs TryHackMeBest bug bounty platforms 2026BlogSpoilersWhat is bug bounty?How much do you earn in bug bounty?OWASP Top 10 explainedBest sites to practice web hackingHow to become an ethical hacker from scratchBurp Suite tutorial (Spanish)OSCP guide and prepGoogle Dorks for bug bountyHow much an ethical hacker earns in SpainBug bounty tools 2026Best cybersecurity certifications 2026Burp Suite tutorialsqlmap tutorialffuf web fuzzingnuclei tutorialHTTP Request SmugglingWAF bypassPrompt injection (LLM)Google Dorks
Made withand code
TermsPrivacyComparisonES

© 2026 BBLABS v2 — All rights reserved