trainingbusinesspros Groundhogg Plugin up to 4.5.5 on WordPress Search sql injection

Summaryinfo

A vulnerability described as critical has been identified in trainingbusinesspros Groundhogg Plugin up to 4.5.5 on WordPress. Affected is an unknown function. Executing a manipulation of the argument Search can lead to sql injection. This vulnerability appears as CVE-2026-13331. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in trainingbusinesspros Groundhogg Plugin up to 4.5.5 on WordPress. This vulnerability affects an unknown code block. The manipulation of the argument search with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via the 'search' parameter in all versions up to, and including, 4.5.5 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 marketer-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The weakness was presented by Chloe Chamberland. The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-13331 since 06/25/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1505.

Upgrading to version 4.5.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-39928). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• trainingbusinesspros

Name

• Groundhogg Plugin

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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