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CVE-2026-11454— Groundhogg — CRM, Newsletters, and Marketing Automation <= 4.5.2 - Insecure Direct Object Reference

Quick assessment

Affected
trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Groundhogg是WordPress基金会开源的一款集成于网站系统的客户关系管理组件。 WordPress Groundhogg 4.5.2及之前版本存在授权问题漏洞，该漏洞源于不安全的直接对象引用，通过GET /wp-json/gh/v4/contacts/<id> REST端点，权限检查仅基于角色级view_contacts能力，read_single()返回完整联系人记录而未进行对象级所有权检查，可能导致认证攻击者读取站点上任何联系人记录，包括个人身份信息、联系人元数据、所有

CVSS 6.5 · Medium EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation ≤ 4.5.2 affected
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I. Basic Information for CVE-2026-11454

Vulnerability Information
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Vulnerability Title
Groundhogg — CRM, Newsletters, and Marketing Automation <= 4.5.2 - Insecure Direct Object Reference
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Groundhogg 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Groundhogg是WordPress基金会开源的一款集成于网站系统的客户关系管理组件。 WordPress Groundhogg 4.5.2及之前版本存在授权问题漏洞，该漏洞源于不安全的直接对象引用，通过GET /wp-json/gh/v4/contacts/<id> REST端点，权限检查仅基于角色级view_contacts能力，read_single()返回完整联系人记录而未进行对象级所有权检查，可能导致认证攻击者读取站点上任何联系人记录，包括个人身份信息、联系人元数据、所有
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation 0 ~ 4.5.2 -

II. Public POCs for CVE-2026-11454

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III. Intelligence Information for CVE-2026-11454

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Patches & Fixes for CVE-2026-11454 (2)

Vendor Advisories for CVE-2026-11454 (1)

Other References for CVE-2026-11454 (1)

IV. Related Vulnerabilities

Same product: Groundhogg — CRM, Newsletters, and Marketing Automation
Same vendor: trainingbusinesspros
Same weakness: CWE-639

V. Comments for CVE-2026-11454

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