---
title: "CVE-2026-84434: Gravity Forms WordPress Plugin - Unrestricted File Upload"
description: "Gravity Forms WordPress plugin <= 3.1.0.4 contains an arbitrary file upload vulnerability caused by bypassing extension validation in hidden file upload fields, letting unauthenticated attackers upload executable files and achieve remote code execution, exploit requires a form with a hidden File Upload field."
url: https://panop.io/threat-heartbeat/CVE-2026-84434/
---

# CVE-2026-84434 Gravity Forms WordPress Plugin - Unrestricted File Upload

Gravity Forms WordPress plugin <= 3.1.0.4 contains an arbitrary file upload vulnerability caused by bypassing extension validation in hidden file upload fields, letting unauthenticated attackers upload executable files and achieve remote code execution, exploit requires a form with a hidden File Upload field.

CVSS base score 9.8 /10

Critical

CISA KEV

Exploited in the wild

Public exploit

Proof of concept available

Authentication

Not required

EPSS

3.91% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-84434)

## Details

Type

Unrestricted File Upload

Impact

Remote Code Execution, File System Write

CVSS vector

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

Published

19 September 2026

Updated

15 October 2026

Weakness

[CWE-434](https://cwe.mitre.org/data/definitions/434.html)

## Vendor fix

Update to the latest version of Gravity Forms plugin.

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-2026-84434](https://nvd.nist.gov/vuln/detail/CVE-2026-84434)
- [https://github.com/murrez/CVE-2026-84434](https://github.com/murrez/CVE-2026-84434)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/787e22a9-329b-4e71-bc2a-4f5524fc9356](https://www.wordfence.com/threat-intel/vulnerabilities/id/787e22a9-329b-4e71-bc2a-4f5524fc9356)
- [https://patchstack.com/database/wordpress/plugin/gravityforms/vulnerability/wordpress-gravity-forms-plugin-3-1-0-4-unauthenticated-arbitrary-file-upload-via-hidden-file-upload-field-vulnerability](https://patchstack.com/database/wordpress/plugin/gravityforms/vulnerability/wordpress-gravity-forms-plugin-3-1-0-4-unauthenticated-arbitrary-file-upload-via-hidden-file-upload-field-vulnerability)
- [https://docs.gravityforms.com/gravityforms-change-log/](https://docs.gravityforms.com/gravityforms-change-log/)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/787e22a9-329b-4e71-bc2a-4f5524fc9356?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/787e22a9-329b-4e71-bc2a-4f5524fc9356?source=cve)

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## 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.

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