Read the docs
TI-2023-28017 Aliases CVE-2023-51359GHSA-mrw9-2m5g-jjg2

WordPress Essential Blocks plugin <= 4.2.0 - Multiple Contributor+ Broken Access Control vulnerability

Priority LOW 39CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-862.

Summary

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 <= 4.2.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00591 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wpdevteamEssential Blocks for Gutenbergup to 4.2.0—No fix listedCNA
  • Essential Blocks for Gutenberg Vendorwpdevteam Affected up to 4.2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:free:wordpress:*:*before 4.2.1Vulnerablewpdevteam
  • cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:free:wordpress:*:* Versions before 4.2.1 Vulnerable ·wpdevteam

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-51359
  2. 2026-10-03 Alias added: GHSA-mrw9-2m5g-jjg2

References

Advisory 1

  • TI-2023-06070 Essential Blocks < 4.4.3 - Unauthenticated Local File Inclusion CVSS 3.1CRITICAL 9.8
  • TI-2024-05197 Essential Blocks < 4.7.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
  • TI-2023-04066 Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via products CVSS 3.1CRITICAL 9.8
  • TI-2023-28018 WordPress Essential Blocks plugin <= 4.2.0 - Multiple Subscriber+ Broken Access Control vulnerability CVSS 3.1HIGH 8.8
  • TI-2023-04052 Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via queries CVSS 3.1HIGH 8.1
  • TI-2025-19742 WordPress Essential Blocks plugin <= 4.8.3 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences