Version 4.4 contains the "scaffolding" as Matthew Mullenweg, founding developer of WordPress put it in his own intro. To be sure, WordPress is not the first CMS to incorporate the REST API framework.

On January 26, the WordPress team released WordPress 4.7.2, which contained a secret fix that addressed a vulnerability in the WordPress REST API.

Ms. Baker said she hopes the new API will be implemented into WordPress Core (which means it would be added to sites when they update) with version 4.4, by this December, though she’s not part ...

WordPress Security Issues Fixed WordPress 5.8.1 fixes three vulnerabilities: A data exposure vulnerability within the REST API Cross-Site Scripting (XSS) vulnerability in the Gutenberg block editor ...

The REST API is enabled by default on all sites using WordPress 4.7.0 or 4.7.1. If you are running these versions of the CMS, you are vulnerable to this attack.

Nouns, verbs and well-formed URIs At the very least, a RESTful API respects REST's uniform interface constraint in two ways: Using nouns in RESTful URIs to ensure web service operations work on ...