Bug-Bounty

Comprehensive Bug Bounty Hunting Guide 🆕 Updated November 2, 2026: added a short how bug bounty testing works intro and FAQ answers to “how do bug bounties work?” and “what should I test first?” A practitioner’s reference for modern bug bounty hunting: AI-augmented methodology, 2026 platform analysis, advanced reconnaissance pipelines, emerging vulnerability classes (SAML, WebAuthn, WASM), automated chaining, and data-driven career strategy. How bug bounty testing works A company publishes a program that says which assets you’re allowed to test and what it pays. You hunt inside that scope, and you only get paid for a valid bug nobody else reported first. That’s why a bug bounty methodology is about choosing where to look as much as how to test. My workflow goes scope, recon, mapping the app, testing one bug class deeply (I start with IDOR), chaining what I find, then writing an impact-first report. Section 4 has the full loop. ...

The quick-reference authorization checklist Broken authorization is the number one bug class in APIs, and it has three faces. This is the scannable checklist I run through when I’m testing an API for it — definitions, setup, and copy-paste test steps for each. For the full exploitation depth (every bypass primitive, parser quirks, real CVEs) see the API Security guide; for the rest of an API test (recon, auth, rate limits, GraphQL, JWT) use its full API security testing checklist. This page is the authorization checklist that sits next to it. ...

There’s no Python library for parsing Content Security Policy headers. I checked PyPI, I checked GitHub — nothing. Google has a CSP Evaluator web tool and an npm package, but if you want to analyze CSP programmatically in Python — for recon scripts, bug bounty automation, or CI pipelines — you’re on your own. So I built one. csp-toolkit is a Python library and CLI tool that parses CSP headers, runs 21 weakness checks, finds bypass vectors against a database of 79 known-exploitable domains, scores policies A+ to F, and does a lot more. The current release is v0.8.1 on PyPI (changelog, docs). ...