---
id: CVE-2026-81660
title: >-
  The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin
  before 4.5.13 does not validate or escape values submitted to some optional
  web form fields before storing them and outputting them back in an
  administrative ar…
summary: >-
  The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin
  before 4.5.13 does not validate or escape values submitted to some optional
  web form fields before storing them and outputting them back in an
  administrative ar…
severity: none
published: '2026-08-30'
updated: '2026-08-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81660'
references:
  - url: 'https://wpscan.com/vulnerability/cfdb4107-6010-4c29-baf3-3111765f48c2/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.00505
epssPercentile: 0.40581
ingestedAt: '2026-08-30T17:55:39.080Z'
---

## Overview

The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin before 4.5.13 does not validate or escape values submitted to some optional web form fields before storing them and outputting them back in an administrative area, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against high privilege users.

## Remediation

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