Medium severity · published May 20, 2023
CVE-2023-2735
Groundhogg <= 2.7.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
5.4
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GC
Groundhogg — CRM, Newsletters, and Marketing Automation · trainingbusinesspros
through 2.7.9.8 · source: vendor
GR
Groundhogg · Groundhogg
through 2.7.9.8 · source: NVD
Affected product
GC
Groundhogg — CRM, Newsletters, and Marketing Automation
trainingbusinesspros
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-2735
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-2735
Third Party Advisory
https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/form/form.php#L187
Third Party Advisory
https://plugins.trac.wordpress.org/browser/groundhogg/tags/2.7.9.8/includes/shortcodes.php#L51
Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2914493/groundhogg/trunk/includes/better-meta-compat.php
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/4938206e-2ea4-47ed-a307-87cf67dd74a4?source=cve
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