What is CVE-2026-13154?

CVE-2026-13154 is a high-severity vulnerability in Gutenberg Essential Blocks, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-08-06.

How severe is CVE-2026-13154?

High severity. CVSS v3 base score is 7.5 out of 10.

Information disclosure in Gutenberg Essential Blocks

CVE-2026-13154

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.

Vulnerability class: Information Disclosure

EPSS: 0.003 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Unknown Gutenberg Essential Blocks — versions 0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-13154?: CVE-2026-13154 is a high-severity vulnerability in Gutenberg Essential Blocks, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-08-06.
How severe is CVE-2026-13154?: High severity. CVSS v3 base score is 7.5 out of 10.