CVE-2026-3906 WordPress 6.9 - 6.9.1 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Note Creation via REST API

WordPress core is vulnerable to unauthorized access in versions 6.9 through 6.9.1. The Notes feature block-level collaboration annotations was introduced in WordPress 6.9 to allow editorial comments directly on posts in the block editor. However, the REST API createitempermissionscheck method in...