// For flags

CVE-2023-4386

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

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*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_posts 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_posts. 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
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-08-16 CVE Reserved
  • 2023-09-13 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-502: Deserialization of Untrusted Data
CAPEC
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"
 <= 4.2.0
Search vendor "Wpdeveloper" for product "Essential Blocks" and version " <= 4.2.0"
wordpress
Affected