SQL Injection Vulnerability in Groundhogg Plugin for WordPress
CVE-2026-13226

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Groundhogg — Crm, Newsletters, And Marketing Automation
Vendor
CVE Published:
26 June 2026

What is CVE-2026-13226?

The Groundhogg plugin for WordPress has a SQL Injection vulnerability that affects versions up to 4.5.4. This arises from inadequate escaping of the 'after' parameter, allowing authenticated users with Sales Manager-level access or higher to inject additional SQL queries into existing ones. The vulnerability is exacerbated by a lack of nonce verification and a commented out capability check in the AJAX handler, which means any authenticated user can access the vulnerable code, thereby potentially extracting sensitive information from the database.

Affected Version(s)

Groundhogg — CRM, Newsletters, and Marketing Automation 0 <= 4.5.4

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/groundhogg/tag...
https://plugins.trac.wordpress.org/browser/groundhogg/tag...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

PRISM
.