What the vulnerability does
01Description
The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via the 'select' parameter in all versions up to, and including, 4.5.8 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with custom-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires the attacker to hold a Groundhogg custom role with the view_contacts capability, which is granted by default to several built-in Groundhogg roles above the base subscriber level.
Explanation of Vulnerability in Simple Terms
02Summary
Groundhogg versions up to 4.5.8 contain a SQL injection vulnerability in database query handling. An authenticated user with low privileges can craft malicious input to read sensitive data from the database, including user information and configuration details. The vulnerability requires valid login credentials but no additional user interaction.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the site's database, including user records and configuration information.
Potential impact on your site
04Site Impact
User data and site configuration may be exposed to authenticated attackers; immediate patching required.
Conditions required to exploit
05Prerequisites
Attacker must have a valid user account with low-level privileges (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
July 2, 2026
CVE published
