CSRF
2
Guides
CSRF in WordPress, Explained
Nonces, why plugins skip them, and how a “moderate” flaw reaches code execution.
Ninja Forms before 3.4.27.1 — Simple CSRF to RCE
A missing request-origin check in Ninja Forms let one crafted link, clicked by a logged-in administrator, escalate into code execution. Fixed in 3.4.27.1.