WordPress component: A security weakness
WordPress component is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- WordPress component
- Plugin slug
Core- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Mar 11, 2026
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Mar 11, 2026 and is one of 45 known issues for WordPress core.
Patch or disable the affected component.
Update WordPress component to a release outside the affected range, or disable and remove it until a fixed version is available.
Technical description
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 `create_item_permissions_check()` method in the comments controller did not verify that the authenticated user has `edit_post` permission on the target post when creating a note. This makes it possible for authenticated attackers with Subscriber-level access to create notes on any post, including posts authored by other users, private posts, and posts in any status.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N