What’s Vulnerable › Vulnerabilities
CVE-2023-2735: Groundhogg <= 2.7.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-05-20 · updated 2026-06-17
- Weakness: CWE-79
Description
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
References
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/form/form.php#L187
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/shortcodes.php#L51
- https://plugins.trac.wordpress.org/changeset/2914493/groundhogg/trunk/includes/better-meta-compat.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4938206e-2ea4-47ed-a307-87cf67dd74a4?source=cve
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/form/form.php#L187
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/shortcodes.php#L51
- https://plugins.trac.wordpress.org/changeset/2914493/groundhogg/trunk/includes/better-meta-compat.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4938206e-2ea4-47ed-a307-87cf67dd74a4?source=cve
Get alerted when CVE-2023-2735 or the next vulnerability affects your stack