CVE-2023-2735 json
Groundhogg <= 2.7.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
published 2023-05-20 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-34196
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected products
- trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wordfence.com
/threat-intel/vulnerabilities/id/4938206e-2ea4-47ed-a307-87cf67dd74a4?source=cve
third-party-advisory
-
plugins.trac.wordpress.org
/browser/groundhogg/tags/2.7.9.8/includes/shortcodes.php#L51
third-party-advisory
-
plugins.trac.wordpress.org
/browser/groundhogg/tags/2.7.9.8/includes/form/form.php#L187
third-party-advisory
-
plugins.trac.wordpress.org
/changeset/2914493/groundhogg/trunk/includes/better-meta-compat.php
third-party-advisory
Sources
- CVE List CVE-2023-2735
- NVD CVE-2023-2735
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.