CVE-2025-3439: Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress <= 3.1.1 - Unauthenticated PHP Object Injection
First published: Fri Apr 11 2025(Updated: )
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.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Everest Forms | <=3.1.1 | |
| Everest Forms | <3.1.2 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-3439?
The severity of CVE-2025-3439 is classified as high due to the potential for PHP Object Injection.
How do I fix CVE-2025-3439?
To fix CVE-2025-3439, update the Everest Forms plugin to version 3.1.2 or later.
Who is affected by CVE-2025-3439?
CVE-2025-3439 affects all versions of the Everest Forms plugin up to and including 3.1.1.
What vulnerability type is CVE-2025-3439?
CVE-2025-3439 is a PHP Object Injection vulnerability.
What could an attacker do with CVE-2025-3439?
An attacker could exploit CVE-2025-3439 to execute arbitrary PHP code using the deserialized 'field_value' parameter.
- agent/references
- agent/title
- agent/weakness
- agent/description
- agent/type
- agent/first-publish-date
- agent/guess-ai
- agent/software-canonical-lookup
- agent/severity
- agent/author
- agent/source
- collector/mitre-cve
- source/MITRE
- agent/event
- collector/epss-latest
- source/FIRST
- agent/epss
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/remedy
- agent/softwarecombine
- agent/tags
- vendor/everest forms
- canonical/everest forms
- vendor/wpeverest