What the vulnerability does
01Description
The Groundhogg plugin for Wordpress is vulnerable to Stored Cross-Site Scripting via the ‘label' parameter in versions up to, and including, 3.7.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Groundhogg versions up to 3.7.4.1 contain a cross-site scripting vulnerability that allows high-privilege users to inject malicious scripts. The vulnerability affects the scope beyond the vulnerable component. An attacker with administrative or elevated access can craft input that executes JavaScript in other users' browsers, potentially compromising account security or stealing sensitive data.
What an attacker can do
03Attacker Capabilities
Inject JavaScript code that runs in other users' browsers to steal data or perform actions on their behalf.
Potential impact on your site
04Site Impact
A compromised admin account could inject malicious scripts affecting all site users and their data.
Conditions required to exploit
05Prerequisites
Attacker must have high-level privileges (admin or equivalent role) in Groundhogg; no user interaction required.
Key dates
06Disclosure timeline
April 1, 2025
CVE published
April 8, 2026
Record updated
