// For flags

CVE-2025-3439

Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress <= 3.1.1 - Unauthenticated PHP Object Injection

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.1.1 via deserialization of untrusted input from the 'field_value' parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

El complemento Everest Forms – Contact Form, Quiz, Survey, Newsletter &amp; Payment Form Builder para WordPress es vulnerable a la inyección de objetos PHP en todas las versiones hasta la 3.1.1 incluida, mediante la deserialización de entradas no confiables del parámetro 'field_value'. Esto permite a atacantes no autenticados inyectar un objeto PHP. No se conoce ninguna cadena POP presente en el software vulnerable, por lo que esta vulnerabilidad no tiene impacto a menos que se instale en el sitio otro complemento o tema que contenga una cadena POP. Si una cadena POP está presente a través de un complemento o tema adicional instalado en el sistema objetivo, puede permitir al atacante realizar acciones como eliminar archivos arbitrarios, recuperar datos confidenciales o ejecutar código, dependiendo de la cadena POP presente.

*Credits: kuaile
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
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-04-08 CVE Reserved
  • 2025-04-10 CVE Published
  • 2025-04-11 CVE Updated
  • 2025-04-17 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
Wpeverest
Search vendor "Wpeverest"
 Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder For WordPress
Search vendor "Wpeverest" for product "Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder For WordPress"
 <= 3.1.1
Search vendor "Wpeverest" for product "Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder For WordPress" and version " <= 3.1.1"
en
Affected