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
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| trainingbusinesspros | Groundhogg — CRM, Newsletters, and Marketing Automation | unaffected |
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| Vendor | Product | Versions | ||||||||
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| Trainingbusinesspros | Groundhogg — Crm, Newsletters, And Marketing Automation |
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| Wordpress-extensions | Groundhogg |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.482% probability within 30 days)
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| First Time appeared |
Trainingbusinesspros
Trainingbusinesspros groundhogg — Crm, Newsletters, And Marketing Automation Wordpress-extensions Wordpress-extensions groundhogg |
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| Vendors & Products |
Trainingbusinesspros
Trainingbusinesspros groundhogg — Crm, Newsletters, And Marketing Automation Wordpress-extensions Wordpress-extensions groundhogg |
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| Metrics |
ssvc
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| 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. | |
| 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 | |
| Weaknesses | CWE-269 | |
| References |
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| Metrics |
cvssV3_1
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