CVE-2026-13333 json
Groundhogg <= 4.5.5 - Authenticated (Sales Rep+) SQL Injection via 'query[select]' Parameter
published 2026-06-27 4 mo ago modified 2026-06-29 4 mo ago also EUVD-2026-39930
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via 'query[select]' 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 Sales Representative-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 sanitized Contact_Query code path can be bypassed by supplying an invalid filter type (e.g., query[filters][0][0][type]=invalid_filter_nonexistent), causing a FilterException to be caught and execution to fall through to the unsanitized Legacy_Contact_Query path.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/4a0c04fe-7a9f-4a3f-ba2c-3bdcb5dec060?source=cve
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.5/includes/legacy-contact-query.php#L753
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.5/includes/legacy-contact-query.php#L708
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.5/includes/contact-query.php#L2585
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.5/api/v3/contacts-api.php#L287
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3586389%40groundhogg&new=3586389%40groundhogg&sfp_email=&sfph_m
Sources
- CVE List CVE-2026-13333
- NVD CVE-2026-13333
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.