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CVE-2026-92975 high CVSS 8.1

Privilege Escalation in Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin) (CVE-2026-92975)

Summary

Vulnerability in Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin) (CVE-2026-92975). Successful exploitation can lead to full system takeover. Exploitable via user_login.

Original description

The description as published by the source.

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 'support@groundhogg.io' / 'help@groundhogg.io' — 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.

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-92975 has been found in Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin).
Attackers can target a specific entry point like user_login over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin) CVE-2026-92975" on the vendor's site.

CVE-2026-92975 (Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin)) — CWE-269 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: user_login / user_email / manage_network_options / submit_ticket
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-269) exists in Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin). Attackers reach the vulnerable code path via user_login without authentication.

📍 Affected scope

Check the vendor advisory for the affected versions of Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin). Attack surface: user_login / user_email / manage_network_options / submit_ticket.

🔥 Severity

Severity: High (CVSS 8.1/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで Groundhogg — CRM, Newsletters, and Marketing Automation (WordPress plugin) を使っているサービスとバージョンを洗い出す。

  2. 2
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

References

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