Groundhogg <= 4.2.6 - Authenticated (Contributor+) Stored Cross-Site Scripting
| CVE | CVE-2025-64367 |
|---|---|
| CVSS | 6.4 (Medium) |
| Publicly Published | October 31, 2025 |
| Last Updated | November 4, 2025 |
| Researcher |
zaim
|
Description
The Groundhogg plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.2.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
References
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Vulnerability Details for Groundhogg — CRM, Newsletters, and Marketing Automation
| Software Type | Plugin |
|---|---|
| Software Slug | groundhogg (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 4.2.6.1, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Groundhogg — CRM, Newsletters, and Marketing Automation
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