CVE-2025-48300: WordPress Groundhogg plugin <= 4.2.1 - Arbitrary File Upload vulnerability

Severity: critical (CVSS 9.1 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: 2025-07-16 · updated 2026-06-17
Weakness: CWE-434

Description

Unrestricted Upload of File with Dangerous Type vulnerability in Adrian Tobey Groundhogg groundhogg allows Upload a Web Shell to a Web Server.This issue affects Groundhogg: from n/a through <= 4.2.1.

Affected products

trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation: through 4.2.1

References

https://patchstack.com/database/Wordpress/Plugin/groundhogg/vulnerability/wordpress-groundhogg-4-2-1-arbitrary-file-upload-vulnerability?_s_id=cve

Get alerted when CVE-2025-48300 or the next vulnerability affects your stack