Description
The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via the 'tag_query' parameter in all versions up to, and including, 4.5.14 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 vendor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires the attacker to trigger the vulnerable Legacy_Contact_Query code path by submitting an unknown filter type (e.g. filters[0][0][type]=force_fallback), which causes a FilterException that dispatches execution away from the modern query handler.
Published: 2026-08-15
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

Sat, 15 Aug 2026 05:45:00 +0000

Type Values Removed Values Added
First Time appeared Trainingbusinesspros
Trainingbusinesspros groundhogg — Crm, Newsletters, And Marketing Automation
Wordpress
Wordpress wordpress
Vendors & Products Trainingbusinesspros
Trainingbusinesspros groundhogg — Crm, Newsletters, And Marketing Automation
Wordpress
Wordpress wordpress

Sat, 15 Aug 2026 03:45:00 +0000

Type Values Removed Values Added
Description The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via the 'tag_query' parameter in all versions up to, and including, 4.5.14 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 vendor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires the attacker to trigger the vulnerable Legacy_Contact_Query code path by submitting an unknown filter type (e.g. filters[0][0][type]=force_fallback), which causes a FilterException that dispatches execution away from the modern query handler.
Title Groundhogg <= 4.5.14 - Authenticated (Vendor+) SQL Injection via 'tag_query' Parameter
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Subscriptions

Trainingbusinesspros Groundhogg — Crm, Newsletters, And Marketing Automation
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-08-15T03:25:56.628Z

Reserved: 2026-07-30T13:00:58.261Z

Link: CVE-2026-18387

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T04:18:17.773

Modified: 2026-08-15T04:18:17.773

Link: CVE-2026-18387

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-15T05:30:03Z

Weaknesses