# CVE-2026-92975: Groundhogg privilege escalation via hardcoded support account identifiers

Source: https://junglewise.ai/threats/cve-2026-92975-the-groundhogg-crm-newsletters-and-marketing-automation-plugin  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-10. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-92975 · Severity: high · CVSS 8.1 · Published 2026-10-10

Groundhogg is a customer relationship management and marketing automation plugin for WordPress. An attacker can register a WordPress account with a hardcoded username and email address, then trick a site administrator into invoking the support access feature, which automatically promotes that account to administrator. This allows complete takeover of the WordPress site.

Technologies: [Groundhogg](https://junglewise.ai/threats/technologies/groundhogg). Vendors: [Groundhogg](https://junglewise.ai/threats/vendors/groundhogg).

## Quick answers

**Is CVE-2026-92975 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-92975 being exploited in the wild.

**How severe is CVE-2026-92975?** High severity, with a CVSS score of 8.1, published 10 October 2026.

**Which products and versions are affected?** Groundhogg up to and including 4.8.3.

**Is there a fix for CVE-2026-92975?** Yes: fixed in 4.8.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-92975 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-92975?** Check whether you run Groundhogg at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 4.8.4

## Technical details

The `create_support_user()` function identifies the support account by matching user_login against the hardcoded string "groundhogg" and user_email against hardcoded support email addresses, without verifying account origin or creation context. Since users control both their login and email, an attacker can register an account matching these criteria; when an administrator uses the support access feature (`submit_ticket` or `process_send_support_access`), the function silently promotes the attacker's account to administrator (or super admin on multisite). A fix exists that tracks the support account by ID and prevents reusing existing accounts with the hardcoded login.

## Affected products

- Groundhogg Groundhogg up to and including 4.8.3

## Timeline

- 2026-10-10: disclosed

## References

- [https://github.com/groundhoggwp/groundhogg/commit/4b413aa6e](https://github.com/groundhoggwp/groundhogg/commit/4b413aa6e)
- [https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.1/admin/help/help-page.php](https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.1/admin/help/help-page.php)

## Related threats

- [Groundhogg sensitive data exposure](https://junglewise.ai/threats/cve-2026-104385-unauthenticated-sensitive-data-exposure-in-groundhogg-4-8-3)
- [Groundhogg SQL injection vulnerability](https://junglewise.ai/threats/cve-2026-104408-improper-neutralization-of-special-elements-used-in-an-sql)
- [Groundhogg import_contacts path traversal](https://junglewise.ai/threats/cve-2026-85310-groundhogg-import-contacts-path-traversal)
- [Groundhogg open redirect in email preference confirmation](https://junglewise.ai/threats/cve-2026-81741-groundhogg-open-redirect-in-email-preference-confirmation)
- [Adrian Tobey Groundhogg path traversal arbitrary file deletion](https://junglewise.ai/threats/cve-2026-57389-adrian-tobey-groundhogg-path-traversal-arbitrary-file-deletion)