CVE-2026-97644: Software Security Vulnerability Vulnerability
HIGHCVE-2026-97644 is a HIGH (CVSS 8.8) security vulnerability vulnerability (CWE-269: Improper Privilege Management) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.. Remediation is available in the latest vendor maintenance releases.
CVE-2026-97644 at a Glance
Security Impact
CVSS: 8.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
How to Fix CVE-2026-97644
To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:treeHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-97644, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:treeAnalyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.
Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
References
Frequently Asked Questions
What is CVE-2026-97644?
Which Software versions are affected?
What version fixes CVE-2026-97644?
What is the CVSS score of CVE-2026-97644?
What CWE is associated with CVE-2026-97644?
How can I check Maven dependencies for CVE-2026-97644?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-9c9v-5p57-4qfm",
"modified" : "2026-10-03T06:31:12Z",
"published" : "2026-10-03T06:31:12Z",
"aliases" : [ "CVE-2026-97644" ],
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-97644"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/api/v3/contacts-api.php#L373"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/api/v4/emails-api.php#L571"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/db/contacts.php#L205"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/includes/main-roles.php#L532"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/includes/replacements.php#L2280"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.8.3/includes/rewrites.php#L460"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/changeset/3724910/groundhogg/trunk/api/v3/contacts-api.php"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/changeset?reponame=&new=3724910%40groundhogg%2Ftags%2F4.9.1&old=3724058%40groundhogg%2Ftags%2F4.9"
}, {
"type" : "WEB",
"url" : "https://www.wordfence.com/threat-intel/vulnerabilities/id/557306b7-7b66-465e-8d4d-ebae5b1577c9?source=cve"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-269" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-10-03T04:18:04Z"
}
}