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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-86783

PostX < 5.0.41 - Unauthenticated Custom Field Key Disclosure via REST API

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Unknown Post Grid Gutenberg Blocks

Default version status: unaffected

  • 0 to < 5.0.41affected

References