---
id: CVE-2026-84254
title: >-
  The click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4 does
  not have authorisation and CSRF checks when updating options via a REST
  endpoint, and does not ensure that the option to be updated belongs to the
  click5 CRM add…
summary: >-
  The click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4 does
  not have authorisation and CSRF checks when updating options via a REST
  endpoint, and does not ensure that the option to be updated belongs to the
  click5 CRM add…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-862
published: '2026-10-11'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T12:17:23.040'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84254'
references:
  - url: 'https://wpscan.com/vulnerability/1dbb03eb-97ba-4a0f-aeea-6a38a47c95e5/'
    label: contact@wpscan.com
tags:
  - nvd
ingestedAt: '2026-10-11T08:44:24.717Z'
epss: 0.00106
epssPercentile: 0.01036
---

## Overview

The click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4. As a result, unauthenticated attackers could change arbitrary blog options, allowing them to create a new administrator account and take over the site.

## Remediation

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