---
id: CVE-2026-84258
title: >-
  The click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1 does not
  sanitise and escape content submitted through an unauthenticated endpoint
  before outputting it back in an admin page, leading to Stored XSS which could
  be used …
summary: >-
  The click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1 does not
  sanitise and escape content submitted through an unauthenticated endpoint
  before outputting it back in an admin page, leading to Stored XSS which could
  be used …
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
published: '2026-10-11'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T12:17:23.197'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84258'
references:
  - url: 'https://wpscan.com/vulnerability/3eae023f-a0fe-4313-9aee-18a8933eedb3/'
    label: contact@wpscan.com
tags:
  - nvd
ingestedAt: '2026-10-11T08:44:24.717Z'
epss: 0.00167
epssPercentile: 0.05488
---

## Overview

The click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1 does not sanitise and escape content submitted through an unauthenticated endpoint before outputting it back in an admin page, leading to Stored XSS which could be used against high privilege users such as admin.

## Remediation

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