CVE-2025-48300 CRITICAL

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

Vendor Adrian Tobey
Product Groundhogg
Weakness CWE-434 · Unrestricted file upload
Published July 16, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

Groundhogg versions up to 4.2.1 allow authenticated administrators to upload files without proper validation. An attacker with admin privileges can upload malicious files that may execute code or compromise site integrity. The vulnerability affects file handling across the application. Update to version 4.5.6 or later to remediate.

What an attacker can do

03Attacker Capabilities

Upload malicious files and execute code on the site with admin-level privileges.

Potential impact on your site

04Site Impact

A compromised admin account can upload files to take over your site or steal data.

Conditions required to exploit

05Prerequisites

Attacker must have administrator access to the Groundhogg installation.

Key dates

06Disclosure timeline

July 16, 2025 CVE published
April 28, 2026 Record updated