CVE-2026-81660 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Groundhogg	Groundhogg
Wordpress	Wordpress

No data.

No data.

References

Link	Providers
https://wpscan.com/vulnerability/cfdb4107-6010-4c29-baf3-3111765f48c2/

History

Mon, 31 Aug 2026 13:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-79
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sun, 30 Aug 2026 08:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Groundhogg Groundhogg groundhogg Wordpress Wordpress wordpress
Vendors & Products		Groundhogg Groundhogg groundhogg Wordpress Wordpress wordpress

Sun, 30 Aug 2026 06:30:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		Groundhogg < 4.5.13 - Unauthenticated Stored XSS via Web Form Dropdown/Radio Field
References		https://wpscan.com/vulnerability/cfdb4107-6010-4c29-baf3-3111765f48c2/

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-08-30T06:00:18.805Z

Updated: 2026-08-31T12:38:06.133Z

Reserved: 2026-08-27T10:06:26.911Z

Link: CVE-2026-81660

Vulnrichment

Updated: 2026-08-31T12:30:13.199Z

NVD

Status : Deferred

Published: 2026-08-30T07:17:21.790

Modified: 2026-08-31T20:14:36.250

Link: CVE-2026-81660

Redhat

No data.

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