CVE-2023-6623

Essential Blocks < 4.4.3 - Unauthenticated Local File Inclusion

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Essential Blocks WordPress plugin before 4.4.3 does not prevent unauthenticated attackers from overwriting local variables when rendering templates over the REST API, which may lead to Local File Inclusion attacks.

El complemento de WordPress Essential Blocks anterior a 4.4.3 no impide que atacantes no autenticados sobrescriban variables locales al representar plantillas a través de la API REST, lo que puede provocar ataques de inclusión de archivos locales.

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.4.2 via the /wp-json/essential-blocks/v1/queries REST API endpoint. This makes it possible for unauthenticated attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

*Credits: Marc Montpas, WPScan

CVSS Scores

NISTv3.1 9.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-12-08 CVE Reserved
2023-12-21 CVE Published
2024-08-02 CVE Updated
2024-08-02 First Exploit
2024-10-18 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://wpscan.com/blog/file-inclusion-vulnerability-fixed-in-essential-blocks-4-4-3	2024-08-02
https://wpscan.com/vulnerability/633c28e0-0c9e-4e68-9424-55c32789b41f	2024-08-02

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wpdeveloper Search vendor "Wpdeveloper"		Essential Blocks Search vendor "Wpdeveloper" for product "Essential Blocks"				< 4.4.3 Search vendor "Wpdeveloper" for product "Essential Blocks" and version " < 4.4.3"		wordpress		Affected