CVE-2026-86783 — PostX < 5.0.41 - Unauthenticated Custom Field Key Disclosure via REST API

CVE-2026-86783

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

Description (CNA)

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 (CNA)

Vendor / product	Versions
Unknown / Post Grid Gutenberg Blocks	affected 0 before 5.0.41

CWE

No CWE identifiers supplied.

References

https://wpscan.com/vulnerability/719fc130-748b-4bad-8091-2858664299ed/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.