CVE-2026-11454 json
Groundhogg — CRM, Newsletters, and Marketing Automation <= 4.5.2 - Insecure Direct Object Reference
published 2026-08-05 3 mo ago modified 2026-08-12 2 mo ago also EUVD-2026-53177
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.5.2 via the GET /wp-json/gh/v4/contacts/<id> REST endpoint. The endpoint's permission callback checks only the role-level view_contacts capability and read_single() returns the full contact record by sequential integer ID without the object-level view_contact ownership check applied elsewhere in the codebase. This makes it possible for authenticated attackers holding view_contacts but not view_others_contacts — notably Groundhogg's built-in Sales Rep role, designed to see only its own contacts — to read any contact record on the site, including PII, contact meta, owner IDs, the admin edit URL, and (for contacts linked to a WordPress user) that user's full capability set.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% 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-639 Authorization Bypass Through User-Controlled Key
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/7fe3d251-4edf-4d94-a946-0aa918135784?source=cve
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.2/api/v4/contacts-api.php#L426
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.2/api/v4/contacts-api.php#L946
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.2/api/v4/base-object-api.php#L124
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.2/includes/main-roles.php#L163
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.2/includes/main-roles.php#L374
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.2/includes/main-roles.php#L43
- plugins.trac.wordpress.org /changeset?new=3569222%40groundhogg%2Ftags%2F4.5.3&old=3562726%40groundhogg%2Ftags%2F4.5.2
- plugins.trac.wordpress.org /browser/groundhogg/tags/4.5.3/api/v4/contacts-api.php#L437
Sources
- CVE List CVE-2026-11454
- NVD CVE-2026-11454
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.