---
title: "CVE-2026-104734: Kirki Freeform Page Builder - Insecure Deserialization"
description: "Kirki Freeform Page Builder plugin for WordPress <= 6.3.2 contains a PHP Object Injection caused by deserialization of untrusted input, letting authenticated attackers with editor or higher privileges inject PHP objects, exploit requires presence of a POP chain in other plugins or themes."
url: https://panop.io/threat-heartbeat/CVE-2026-104734/
---

# CVE-2026-104734 Kirki Freeform Page Builder - Insecure Deserialization

Kirki Freeform Page Builder plugin for WordPress <= 6.3.2 contains a PHP Object Injection caused by deserialization of untrusted input, letting authenticated attackers with editor or higher privileges inject PHP objects, exploit requires presence of a POP chain in other plugins or themes.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.47% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-104734)

## Details

Type

Insecure Deserialization

Impact

Remote Code Execution, Data Tampering, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Published

17 October 2026

Updated

19 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to the latest version beyond 6.3.2 or apply patches addressing PHP Object Injection.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-104734](https://nvd.nist.gov/vuln/detail/CVE-2026-104734)
- [https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/Ajax.php#L802](https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/Ajax.php#L802)
- [https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/Ajax/TemplateExportImport.php#L35](https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/Ajax/TemplateExportImport.php#L35)
- [https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/ExportImport/TemplateImport.php#L963](https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/ExportImport/TemplateImport.php#L963)
- [https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/ExportImport/TemplateImport.php#L987](https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/ExportImport/TemplateImport.php#L987)
- [https://plugins.trac.wordpress.org/changeset/3743904/kirki/trunk/includes/ExportImport/TemplateImport.php](https://plugins.trac.wordpress.org/changeset/3743904/kirki/trunk/includes/ExportImport/TemplateImport.php)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/3c760235-ee53-4906-9e25-19df85b8f8ff?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/3c760235-ee53-4906-9e25-19df85b8f8ff?source=cve)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)