Deserialization in Wpeverest Everest Forms – Contact Form, Payment Quiz, Survey & Custom Form Builder
CVE-2026-3296
The Everest Forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.4.3 via deserialization of untrusted input from form entry metadata. This is due to the html-admin-page-entries-view.php f…
Vulnerability class: Insecure Deserialization
EPSS: 0.000 (11.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/2693ae37-790d-4b18-a9ec-054c8…
- plugins.trac.wordpress.org/browser/everest-forms/tags/3.4.3/includes/admin/view…
- plugins.trac.wordpress.org/browser/everest-forms/trunk/includes/admin/views/htm…
- plugins.trac.wordpress.org/browser/everest-forms/tags/3.4.3/includes/evf-core-f…
- plugins.trac.wordpress.org/changeset/3489938/everest-forms/tags/3.4.4/readme.txt
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-3296?
- CVE-2026-3296 is a critical-severity vulnerability in Wpeverest Everest Forms – Contact Form, Payment Quiz, Survey & Custom Form Builder, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-04-08.
- How severe is CVE-2026-3296?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2026-3296 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.