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