CVE-2023-2735: Groundhogg

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

The Groundhogg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'gh_form' shortcode in versions up to, and including, 2.7.9.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Please note this only works with legacy contact forms.

Affected products

• Groundhogg Groundhogg: up to and including 2.7.9.8

Published 2023-05-20. Last modified 2026-06-17.