Groundhogg <= 4.5.4 - Authenticated (Custom+) SQL Injection via 'after' Parameter
Summary
| CVE | CVE-2026-13226 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-26 02:16:51 UTC |
| Updated | 2026-06-26 16:16:30 UTC |
| Description | The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via the 'after' parameter in all versions up to, and including, 4.5.4 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Sales Manager-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The AJAX handler wp_ajax_groundhogg_get_contacts_table has its capability check commented out and performs no nonce verification, meaning any authenticated user regardless of role can reach the vulnerable code path. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.002810000 probability, percentile 0.198440000 (date 2026-06-26)
Problem Types: CWE-89 | CWE-89 CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Trainingbusinesspros | Groundhogg CRM Newsletters And Marketing Automation | affected 4.5.4 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.4/admin/contacts/contacts-page.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/f2ba40d9-2d37-453a-a731-078f1... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.4/includes/legacy-contact-query.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.4/includes/contact-query.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.4/includes/legacy-contact-query.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.4/admin/contacts/tables/contacts-... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.4/includes/functions.php | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: PRISM (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-06-24T16:51:54.000Z | Vendor Notified |
| CNA | 2026-06-25T13:02:09.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.