Complete comparison of WordPress REST API authentication methods in 2026: Cookie and nonce, Application Passwords, JWT, OAuth 1.0a, and OAuth 2.0. Includes a decision matrix, PHP and cURL examples, and guidance on media upload authentication.
A practical WordPress security hardening checklist covering authentication, file permissions, login protection, database prefixes, and plugin hygiene - tested against current attack patterns.
Master WordPress REST API authentication with this complete guide covering Cookie Authentication, Application Passwords, JWT tokens, and OAuth 2.0. Learn implementation details, security best practices, and how to choose the right method for your project.