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CVE-2025-3439

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

Published: Apr 11, 2025Updated: Apr 23, 2025 Sources: CVE List NVDCWE-502
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.1%
Top 38.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builderwpeverest
On-premWeb App
Web & CMS Plugins / cms-core
everest formswpeverest
On-premCMS Plugin
Web & CMS Plugins / wordpress-plugin
wpeverestcommercialWeb & CMS Pluginsaka wpeverest, everest forms, everest forms membership

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/0e5617a2-5670-4d98-a36b-942f71634642?source=cve
wordfence.com
https://plugins.trac.wordpress.org/browser/everest-forms/trunk/includes/admin/views/html-admin-page-entries-view.php#L147
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3268742/
plugins.trac.wordpress.org

Timeline

Published
Apr 11, 2025
Last Updated
Apr 23, 2025

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