CVE-2025-26871

WordPress Essential Blocks plugin <= 4.8.3 - Broken Access Control vulnerability

4.3 Medium

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg essential-blocks allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Essential Blocks for Gutenberg: from n/a through <= 4.8.3.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.41%Up 0.4 points since Feb 27, 2025

What each source reports

CVE List Score used 4.3

WordPress Essential Blocks plugin <= 4.8.3 - Broken Access Control vulnerability

Record: CVE-2025-26871
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

EUVDEUVD-2025-5384 4.3

Record: EUVD-2025-5384
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-mrv8-gxqf-frxh 4.3

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg allows...

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Essential Blocks for Gutenberg: from n/a through 4.8.3.

Record: GHSA-mrv8-gxqf-frxh
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

NVD 4.3

Record: CVE-2025-26871
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-862
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-26871 is a medium vulnerability (CVSS 4.3) in Wpdeveloper Essential Blocks For Gutenberg, published February 25, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.