What is the CVSS score of CVE-2023-51359?

CVE-2023-51359 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L. EPSS exploitation probability: 0.2%.

Essential Blocks CVE-2023-51359

MEDIUM

Missing Authorization (CWE-862)

2024-12-09 audit@patchstack.com

WordPress Authentication Bypass Essential Blocks Wordpress Plugin Wpdeveloper

5.4

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-862 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V8 - Authorization Authorization checks on every request MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 5.4 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.15%.
Exploit ScenarioDerived	A remote attacker could access resources or perform actions without proper authorization checks by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg essential-blocks allows Exploiting Incorrectly Configured Access Control Security Levels.2.0. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg essential-blocks allows Exploiting Incorrectly Configured Access Control Security Levels.2.0. Affected products include: Wpdeveloper Essential Blocks.

Know when Essential Blocks gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 5.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 10:22 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 10:22 NVD

8.8 (HIGH) 5.4 (MEDIUM)

CVE Published

Dec 09, 2024 - 13:15 cve.org

MEDIUM 5.4

DescriptionCVE.org

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.

Threat Intelligence Overview

EPSS Score

0.2%

Top 64% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +27

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:free:wordpress:*:*

More in Essential Blocks

View all

CVE-2023-4402 HIGH This Week POC

8.1 Oct 20

The Essential Blocks plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.2.0

CVE-2024-5595 MEDIUM This Month POC

5.4 Aug 02

The Essential Blocks WordPress plugin before 4.7.0 does not validate and escape some of its block options before outputt

CVE-2023-4386 HIGH This Week

8.1 Oct 20

The Essential Blocks plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.2.0

CVE-2024-30467 HIGH This Week

8.8 Jun 09

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg.4.9. Rated high severity (CVSS 8.8), t

CVE-2024-47385 MEDIUM This Month

6.5 Oct 05

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPDeveloper Essent

CVE-2022-47594 MEDIUM This Month

6.5 Dec 13

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg essential-blocks allows Exploiting Inc

CVE-2024-31306 MEDIUM This Month

6.5 Apr 07

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPDeveloper Essent

CVE-2023-51360 MEDIUM This Month

6.5 Dec 09

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg essential-blocks allows Exploiting Inc

CVE-2024-4891 MEDIUM This Month

6.4 May 18

The Essential Blocks - Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored

CVE-2024-1854 MEDIUM This Month

6.4 Mar 13

The Essential Blocks - Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored

CVE-2023-7071 MEDIUM This Month

6.4 Jan 11

The Essential Blocks - Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored

CVE-2024-2255 MEDIUM This Month

6.4 Mar 20

The Essential Blocks - Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored

Same weakness CWE-862 – Missing Authorization

View all

CVE-2023-52163 HIGH POC

8.8

CVE-2025-6205 CRITICAL POC

9.1

CVE-2025-20362 HIGH POC

8.6

CVE-2017-9232 CRITICAL POC

9.8

CVE-2023-6875 CRITICAL POC

9.8

CVE-2024-4898 CRITICAL POC

9.8

CVE-2023-32117 CRITICAL POC

9.8

CVE-2020-36719 CRITICAL POC

9.8

Same technique Authentication Bypass

View all

CVE-2015-3306 CRITICAL POC

10.0

CVE-2023-22515 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2022-40684 CRITICAL POC

9.8

CVE-2025-61882 CRITICAL POC

9.8

CVE-2024-0012 CRITICAL POC

9.3

References

Advisories & patches

REF https://patchstack.com/database/Wordpress/Plugin/essential-blocks/vulnerability/wordpress-essential-blocks-plugin-4-2-0-multiple-contributor-broken-access-control-vulnerability?_s_id=cve

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back