CVE-2026-13333: Groundhogg CRM SQL injection in query[select] parameter

CVE-2026-13333 · Severity: medium · CVSS 6.5 · Published 2026-06-27

Groundhogg is a WordPress plugin used for customer relationship management (CRM) and marketing automation. A security vulnerability in this plugin allows authorized users, such as sales representatives, to bypass security filters and run unauthorized database commands. This could lead to the exposure of sensitive customer information and internal business data stored in the website's database.

Technologies: Groundhogg. Vendors: Groundhogg.

Quick answers

Is CVE-2026-13333 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-13333 being exploited in the wild.
How severe is CVE-2026-13333?
Medium severity, with a CVSS score of 6.5, published 27 June 2026.
Which products and versions are affected?
Groundhogg up to, and including, 4.5.5.
Is there a fix for CVE-2026-13333?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-13333 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-13333?
Check whether you run Groundhogg at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is a generic SQL injection located in the 'query[select]' parameter of the Groundhogg plugin. The root cause is insufficient escaping of user-supplied parameters and a lack of SQL query preparation. An attacker can bypass the sanitized Contact_Query code path by providing an invalid filter type (e.g., query[filters][0][0][type]=invalid_filter_nonexistent), which triggers a FilterException. This exception causes the execution to fall through to the unsanitized Legacy_Contact_Query path. Exploitation requires network access and at least Sales Representative-level authentication, allowing the attacker to append arbitrary SQL queries and extract sensitive data.

Affected products

  • trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation up to, and including, 4.5.5

Timeline

  • 2026-06-27: advisory: NVD publication date

References

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