Quick answers
- Is CVE-2026-13331 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-13331 being exploited in the wild.
- How severe is CVE-2026-13331?
- 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-2026-13331?
- 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-2026-13331 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-13331?
- 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
The Groundhogg plugin for WordPress is vulnerable to SQL Injection via the 'search' parameter in versions up to and including 4.5.5. The vulnerability stems from insufficient escaping of user-supplied input and a lack of proper SQL query preparation in several components, including the base-object-api and database handling scripts. An authenticated attacker with 'marketer' level privileges or higher can exploit this by injecting malicious SQL commands into existing queries. This allows for the extraction of sensitive data from the WordPress database. The issue is addressed in subsequent updates via improved input sanitization and the use of prepared statements.
Affected products
- trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation up to, and including, 4.5.5
Timeline
- 2026-06-27: disclosed
References
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.5/api/v4/base-object-api.php
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.5/db/db.php
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.5/db/db.php
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.5/db/steps.php
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/4.5.5/db/steps.php
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3586389%40groundhogg&new=3586389%40groundhogg&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/20ee6bc7-2732-4da3-b005-a971d12b0e32?source=cve