CVE-2026-40793

Groundhogg — CRM, Newsletters, and Marketing Automation < 4.4.1 - Missing Authorization

2026-04-24 00:00

Strategic Overview

Status: Patched in 4.4.1
Affected Plugin: Groundhogg — CRM, Newsletters, and Marketing Automation
Affected Version: < 4.4.1
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-40793

View all Groundhogg — CRM, Newsletters, and Marketing Automation vulnerabilities

At a glance

CVE-2026-40793 is a medium-severity Missing Authorization vulnerability in the Groundhogg WordPress plugin, affecting versions < 4.4.1. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 4.4.1; sites on affected versions should update now. Disclosed April 2026, reported by Jakub Herman.

Vulnerability Overview

The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to 4.4.1. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform an unauthorized action.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Groundhogg < 4.4.1 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Groundhogg the fix is 4.4.1: builds < 4.4.1 are affected, anything from 4.4.1 onward is not.

Remediation

Update to version 4.4.1, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Groundhogg 4.4.1 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-40793 https://www.wordfence.com/threat-intel/vulnerabilities/id/d9e5cbde-6bc6-49f2-91b4-86c1779de2dc https://nvd.nist.gov/vuln/detail/CVE-2026-40793

Related records

Same weakness class

Other vulnerabilities in Groundhogg — CRM, Newsletters, and Marketing Automation

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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