CVE-2026-92975

8.1 HIGHpublic exploit available

Published 2026-10-10 · Updated 2026-10-13

AI risk analysis

Summary: The Groundhogg WordPress plugin has a privilege escalation vulnerability where any user with login 'groundhogg' and a matching support email can be silently promoted to administrator by a legitimate admin triggering support access. This allows full site takeover with just two actors: a pre-planted account and an admin invoking support features.
Exploitability: Exploitation requires two actors - first, an attacker must create or obtain an account with login 'groundhogg' and one of the hardcoded support emails, then a legitimate administrator must trigger support access via submit_ticket or process_send_support_access endpoints.
Blast radius: The vulnerability affects all WordPress sites using Groundhogg plugin versions up to 4.8.3, potentially allowing full site takeover with elevated privileges that persist beyond the initial exploitation.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to version 4.8.4 or later to remediate this privilege escalation vulnerability.

privilege-escalationwordpressplugin

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.8.3 via the `create_support_user()` function. This is due to the function identifying the support account solely by matching against publicly hardcoded constants — `user_login` `'groundhogg'` and email addresses `'[email protected]'` / `'[email protected]'` — where the `in_array()` email-equality check at line 238 is not a security boundary because any user fully controls their own email value. This makes it possible for an attacker with an account whose `user_login` is `'groundhogg'` and whose `user_email` matches one of the hardcoded support constants to have that account silently promoted to administrator — and additionally to super admin on multisite when the triggering administrator holds `manage_network_options` — resulting in full site takeover. Exploitation requires a two-actor flow: the attacker must first obtain or pre-plant an account with the hardcoded credentials (possible when open user registration is enabled or another account-creation path exists), after which a legitimate administrator must invoke the support-access feature via the `submit_ticket` or `process_send_support_access` entry points to trigger the promotion.

CVSS vector

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

Weaknesses

CWE-269

Public exploit & PoC references

https://github.com/groundhoggwp/groundhogg/commit/4b413aa6e

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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