CVE-2023-4402

Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via products

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 plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.2.0 via deserialization of untrusted input in the get_products function. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

El complemento Essential Blocks para WordPress es vulnerable a la inyección de objetos PHP en versiones hasta la 4.2.0 incluida a través de la deserialización de entradas que no son de confianza en la función get_products. Esto permite a atacantes no autenticados inyectar un objeto PHP. No hay ninguna cadena POP presente en el complemento vulnerable. Si hay una cadena POP presente a través de un complemento o tema adicional instalado en el sistema de destino, podría permitir al atacante eliminar archivos arbitrarios, recuperar datos confidenciales o ejecutar código.

WordPress Essential Blocks plugin versions 4.2.0 and below and Essential Blocks Pro versions 1.1.0 and below suffer from multiple PHP object injection vulnerabilities.

*Credits: Marco Wotschka

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-08-17 CVE Reserved
2023-09-13 CVE Published
2024-08-02 CVE Updated
2024-08-02 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-502: Deserialization of Untrusted Data

CAPEC

References (2)

URL	Tag	Source
https://www.wordfence.com/threat-intel/vulnerabilities/id/1ede7a25-9bb2-408e-b7fb-e5bd4f594351?source=cve	Third Party Advisory

URL	Date	SRC
https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49	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"				< 4.2.1 Search vendor "Wpdeveloper" for product "Essential Blocks" and version " < 4.2.1"		wordpress		Affected
Wpdeveloper Search vendor "Wpdeveloper"		Essential Blocks Pro Search vendor "Wpdeveloper" for product "Essential Blocks Pro"				< 1.1.1 Search vendor "Wpdeveloper" for product "Essential Blocks Pro" and version " < 1.1.1"		wordpress		Affected