CVE-2025-3439: The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for Wor

Q: How do I fix CVE-2025-3439?

everest forms: upgrade to 3.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2025-3439 being exploited?

CVE-2025-3439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-3439 affect?

CVE-2025-3439 affects everest forms. Severity is critical (CVSS 9.8). 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 fr

Q: How urgent is CVE-2025-3439?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-3439 is a critical-severity flaw (CVSS 9.8) affecting everest forms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 impac

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-502
Published	2025-04-11
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: wpeverest

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-11 13:15 UTCPublished CVE record published
2026-06-17 09:19 UTCUpdated Record last modified

wpeverest everest forms UPGRADE

Affected: < 3.1.2

Fixed in: 3.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy everest-forms || rpm -q everest-forms || everest-forms --version

2. UPGRADE to 3.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade everest-forms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade everest-forms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-3439?

everest forms: upgrade to 3.1.2. Exact commands for each OS are on this page.

Is CVE-2025-3439 being exploited?

CVE-2025-3439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-3439 affect?

CVE-2025-3439 affects everest forms. Severity is critical (CVSS 9.8). 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 fr

How urgent is CVE-2025-3439?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities · PHP vulnerabilities

Related CVEs

CVE-2025-5927 HIGH 7.5 UPGRADE The Everest Forms (Pro) plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file
CVE-2025-3422 MEDIUM 5.4 UPGRADE The The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for
CVE-2025-3421 MEDIUM 6.1 UPGRADE The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for Wor
CVE-2025-26841 MEDIUM 6.1 UPGRADE Cross Site Scripting vulnerability in WPEVEREST Everest Forms before 3.0.9 allows an attacker to execute arbit
CVE-2025-1128 CRITICAL 9.8 UPGRADE The Everest Forms – Contact Forms, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for Wo

References

← Back to latest CVEs