Foundation glossary/AppSec

OWASP Top 10

Companion card for the Foundation course — study the related lesson for full progress.

Simple explanation

Common web app risk list developers must know — current edition is Top 10:2025.

Technical explanation

Consensus critical web risks; 2025 reorders categories (injection=A05, supply chain=A03, SSRF under A01). Keep 2021 codes as historical only.

Real-life scenario

Why your college portal must not show another student’s fees if you change an ID in the URL.

Security relevance

Shared language for AppSec priorities in web and APIs — use Top 10:2025 as current.

Practical example

A01:2025 Broken Access Control, A05:2025 Injection…

OWASP Top 10:2025 — consensus critical web risks (2021 codes are historical).

Mini quiz

Changing a student ID in a URL to see another fee bill is closest to:

Related lesson

No direct lesson slug yet — use the Foundation course syllabus or roadmap level web-security.