{"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"}}]}}