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vuln-cve/data/2026/97xxx/CVE-2026-97644.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-97644",
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"state": "PUBLISHED",
"assignerShortName": "Wordfence",
"dateReserved": "2026-09-24T18:20:11.240Z",
"datePublished": "2026-10-03T03:25:44.527Z",
"dateUpdated": "2026-10-03T15:42:46.419Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence",
"dateUpdated": "2026-10-03T03:25:44.527Z"
},
"affected": [
{
"vendor": "trainingbusinesspros",
"product": "Groundhogg — CRM, Newsletters, and Marketing Automation",
"versions": [
{
"version": "0",
"status": "affected",
"lessThanOrEqual": "4.9",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
],
"descriptions": [
{
"lang": "en",
"value": "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",
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/557306b7-7b66-465e-8d4d-ebae5b1577c9?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/api/v3/contacts-api.php#L373"
},
{
"url": "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/db/contacts.php#L205"
},
{
"url": "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/api/v4/emails-api.php#L571"
},
{
"url": "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/includes/replacements.php#L2280"
},
{
"url": "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/includes/rewrites.php#L460"
},
{
"url": "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/includes/main-roles.php#L532"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&new=3724910%40groundhogg%2Ftags%2F4.9.1&old=3724058%40groundhogg%2Ftags%2F4.9"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3724910/groundhogg/trunk/api/v3/contacts-api.php"
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-269 Improper Privilege Management",
"cweId": "CWE-269",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 8.8,
"baseSeverity": "HIGH"
}
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Supakiad S. (m3ez)"
}
],
"timeline": [
{
"time": "2026-09-24T18:35:22.000Z",
"lang": "en",
"value": "Vendor Notified"
},
{
"time": "2026-10-02T14:47:56.000Z",
"lang": "en",
"value": "Disclosed"
}
]
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-97644",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-10-03T15:33:36.949763Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-03T15:42:46.419Z"
}
}
]
}
}