CVE-2023-2735

Name: CVE-2023-2735
Creator: NVD / NIST
Published: 2023-05-20T03:15:09.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2023-2735 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.49%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Groundhogg	Groundhogg	<= 2.7.9.8

References

https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/form/form.php#L187Third Party Advisory
https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/shortcodes.php#L51Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2914493/groundhogg/trunk/includes/better-meta-compat.phpThird Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/4938206e-2ea4-47ed-a307-87cf67dd74a4?source=cveThird Party Advisory
https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/form/form.php#L187Third Party Advisory
https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/shortcodes.php#L51Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2914493/groundhogg/trunk/includes/better-meta-compat.phpThird Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/4938206e-2ea4-47ed-a307-87cf67dd74a4?source=cveThird Party Advisory

Timeline

Published: May 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-2735?

How severe is CVE-2023-2735?

CVE-2023-2735 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2023-2735?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-2735?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST