CVE-2026-86783 — PostX < 5.0.41 - Unauthenticated Custom Field Key Disclosure via REST API
The Post Grid Gutenberg Blocks WordPress plugin before 5.0.41 does not perform an authorization or post-visibility check on a REST API route that returns the custom field keys …
Published: 2026-09-23 · CVSS: 5.3 · CVSS 3.1
The Post Grid Gutenberg Blocks WordPress plugin before 5.0.41 does not perform an authorization or post-visibility check on a REST API route that returns the custom field keys of a given post, allowing unauthenticated users to disclose the custom field key names of arbitrary posts, including private, draft, pending, scheduled and password-protected posts.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7