Vulnerability · Published Aug 6, 2026 · Assigned by WPScan

CVE-2026-13154Essential Blocks < 6.4.0 - Unauthenticated Non-Public Custom Post Type Content Disclosure via queries Endpoint

High 7.5

In plain English

A high-severity information exposure in Gutenberg Essential Blocks from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 62.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

The Gutenberg Essential Blocks WordPress plugin before 6.4.0 does not verify that an attacker-supplied post type is publicly viewable before querying it in one of its public REST routes, allowing unauthenticated users to read published entries of custom post types that the site registered as non-public.

Affected products (as reported)

VendorProductVersions
Unknown Gutenberg Essential Blocks 0 – before 6.4.0

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References