You just ran number one. Here are all ten.
The guide breaks down each one the same way: what it is, the request that exploits it, and the control that closes it.
Users reaching records that belong to someone else by changing an ID. The T-Mobile pattern.
Weak tokens, missing MFA, and sessions that let attackers impersonate users.
Exposing or letting users edit fields they were never meant to touch.
No limits on requests, uploads, or queries, leading to outages and cloud bills.
Standard users reaching admin-only endpoints and actions.
Bots abusing legitimate workflows at scale: scalping, fraud, hoarding.
Tricking your server into calling internal systems and cloud metadata.
Default credentials, debug modes, and permissive settings shipped to production.
Shadow and deprecated APIs that nobody is tracking or patching.
Trusting third-party APIs without validating what comes back.
Written to be used, not filed away.
Built on the current standard
Maps directly to the OWASP API Security Top 10, 2023 edition.
Vendor-neutral
Nothing to buy. Works with the stack you already run.
Practitioner-first
Real endpoints and fixes, not abstract theory.
For the whole team
The engineers who ship the endpoints and the leads who answer for them.
37 million reasons to read it.
Ten exploits. Ten fixes. One free PDF.