---
id: CVE-2026-87067
title: >-
  The Forminator Forms  WordPress plugin before 1.57.2.1 does not restrict which
  classes may be instantiated when it deserialises a value taken from an XML-RPC
  request, allowing users who hold its forms-management permission to write a
  fil…
summary: >-
  The Forminator Forms  WordPress plugin before 1.57.2.1 does not restrict which
  classes may be instantiated when it deserialises a value taken from an XML-RPC
  request, allowing users who hold its forms-management permission to write a
  fil…
severity: high
cvss: 8.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-94
product: Forminator Forms
affected:
  - forminator_forms >= 1.57.0.7 < 1.57.2.1
published: '2026-09-20'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T13:34:57.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87067'
references:
  - url: 'https://wpscan.com/vulnerability/9f5da02e-55af-463f-8b1a-9fe792d589c4/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
epss: 0.00471
epssPercentile: 0.38103
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-20T13:49:45.844011Z'
ingestedAt: '2026-09-20T07:16:12.221Z'
---

## Overview

The Forminator Forms  WordPress plugin before 1.57.2.1 does not restrict which classes may be instantiated when it deserialises a value taken from an XML-RPC request, allowing users who hold its forms-management permission to write a file of their choosing and execute arbitrary code. That permission belongs to an administrator by default, and to any role the site has granted it through the Forminator Forms  WordPress plugin before 1.57.2.1's own settings, so the issue is reachable well below administrator on sites that use that feature.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.