Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-97644— Groundhogg <= 4.9 - Authenticated (Sales Person+) Privilege Escalation via Contact Identity Rebinding leading to Administrator Account Takeover to 'user_id' Parameter (v3 /contacts) chained with v4 /emails/test

Quick assessment

Affected
trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件 Groundhogg — CRM、新闻通讯与营销自动化存在因联系身份重新绑定而导致的权限提升漏洞，影响其所有 4.9 及更早版本。 该漏洞的根源在于：v3 REST 端点（ ）中的 函数仅以 权限作为访问控制，并将完整请求负载（包括携带安全标识的 字段）直接传递至 的插入/更新（upsert）路径。此操作绕过了 所施加的所有权保护机制，从而使攻击者能够将任意现有联系记录重新绑定至一个任意的 WordPress 用户 ID。 这一缺陷使得具备“销售代表”（Sales Representati

CVSS 8.8 · High
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-97644

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Groundhogg <= 4.9 - Authenticated (Sales Person+) Privilege Escalation via Contact Identity Rebinding leading to Administrator Account Takeover to 'user_id' Parameter (v3 /contacts) chained with v4 /emails/test
Source: CVE Program / CVE List V5
Vulnerability Description
The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to Privilege Escalation via Contact Identity Rebinding in all versions up to, and including, 4.9 The vulnerability exists because the `create_contact` function in the v3 REST endpoint (`POST /gh/v3/contacts`) is gated solely by the `add_contacts` capability and forwards the full request payload — including the security-bearing `user_id` column — into the upsert path of `Contacts_DB::add()`, which bypasses the ownership guard that `Contacts_DB::update()` enforces, allowing an attacker to rebind any existing contact record to an arbitrary WordPress user ID. This makes it possible for authenticated attackers with Sales Representative-level access and above to upsert their own contact row to point to an Administrator's user ID, then invoke the v4 email-test endpoint (`POST /gh/v4/emails/test`) — also accessible to the Sales Representative role via the `send_emails` capability — to generate an `{auto_login_url}` one-time permissions key bound to the rebound contact, and consume that link to call `wp_set_auth_cookie()` and gain a fully authenticated session as the WordPress Administrator.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation 0 ~ 4.9 -

II. Public POCs for CVE-2026-97644

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-97644

请登录查看更多情报信息。

Other References for CVE-2026-97644 (9)

IV. Related Vulnerabilities

Same product: Groundhogg — CRM, Newsletters, and Marketing Automation
Same vendor: trainingbusinesspros
Same weakness: CWE-269

V. Comments for CVE-2026-97644

No comments yet

Leave a comment