Groundhogg — CRM, Newsletters, and Marketing Automation <= 4.5.2 - Insecure Direct Object Reference
Summary
| CVE | CVE-2026-11454 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-05 08:16:28 UTC |
| Updated | 2026-08-12 21:00:37 UTC |
| Description | The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.5.2 via the GET /wp-json/gh/v4/contacts/<id> REST endpoint. The endpoint's permission callback checks only the role-level view_contacts capability and read_single() returns the full contact record by sequential integer ID without the object-level view_contact ownership check applied elsewhere in the codebase. This makes it possible for authenticated attackers holding view_contacts but not view_others_contacts — notably Groundhogg's built-in Sales Rep role, designed to see only its own contacts — to read any contact record on the site, including PII, contact meta, owner IDs, the admin edit URL, and (for contacts linked to a WordPress user) that user's full capability set. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.003950000 probability, percentile 0.325840000 (date 2026-08-13)
Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Trainingbusinesspros | Groundhogg CRM Newsletters And Marketing Automation | affected 4.5.2 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.2/api/v4/base-object-api.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.2/includes/main-roles.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.2/includes/main-roles.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.3/api/v4/contacts-api.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.2/includes/main-roles.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.2/api/v4/contacts-api.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.2/api/v4/contacts-api.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/7fe3d251-4edf-4d94-a946-0aa91... | [email protected] | www.wordfence.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Lucius-log (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-06-06T13:01:46.000Z | Vendor Notified |
| CNA | 2026-08-04T18:37:06.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.