XSS in Groundhogg
CVE-2023-2735
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/4938206e-2ea4-47ed-a307-87cf6… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/shortcodes… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/form/form.p… (Third Party Advisory)
- plugins.trac.wordpress.org/changeset/2914493/groundhogg/trunk/includes/better-m… (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-2735?
- CVE-2023-2735 is a medium-severity vulnerability in Groundhogg, classified under Cross-site Scripting. CVSS score: 4.9/10. Published 2023-05-20.
- How severe is CVE-2023-2735?
- Medium severity. CVSS v3 base score is 4.9 out of 10.
- Is CVE-2023-2735 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.