TI-2023-01958 Aliases CVE-2023-2083 GHSA-qhh4-5cqj-p582

Essential Blocks <= 4.0.6 - Missing Authorization via save

LOW 21CWE-862Published 2023-06-09 · Updated 2026-04-08

Key facts

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

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

Summary

The Essential Blocks plugin for WordPress is vulnerable to unauthorized use of functionality due to a missing capability check on the save function in versions up to, and including, 4.0.6. This makes it possible for subscriber-level attackers to save plugin settings. While a nonce check is present, it is only executed when a nonce is provided. Not providing a nonce results in the nonce verification to be skipped. There is no capability check.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00567 47th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
wpdevteam	Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns	up to 4.0.6	—	No fix listed	CNA

Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns Vendorwpdevteam Affected up to 4.0.6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wpdeveloper:essential_blocks::::::wordpress::*	up to 4.0.6	Vulnerable	wpdevteam

cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:*:wordpress:*:* Versions up to 4.0.6 Vulnerable ·wpdevteam

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-2083
2026-10-03 Alias added: GHSA-qhh4-5cqj-p582

References

Patch 2

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/f8bf0933-1c97-4374-b323-c55b91fe4d27?source=cve

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-2023-28017 WordPress Essential Blocks plugin <= 4.2.0 - Multiple Contributor+ 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

See all 24 →

Sources

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