Pimcore Customer Data Framework Improper Access Control allows unprivileged user to access customers duplicates list
Summary
An authenticated and unauthorized user can access the list of potential duplicate users and see their data.
Details
Permissions do not seem to be enforced when reaching the /admin/customermanagementframework/duplicates/list endpoint allowing an authenticated user without the permissions to access the endpoint and query the data available there. It seems that the access control is not enforced in this place :
https://github.com/pimcore/customer-data-framework/blob/b4af625ef327c58d05ef7cdf145fa749d2d4195e/src/Controller/Admin/DuplicatesController.php#L43
PoC
In order to reproduce the issue, the following steps can be followed :
- As an administrator : a. Create a role without any permission through Settings → User & Roles → Roles in the administration panel b. Create an user through Settings → User & Roles → Users and assign it the unprivileged role previously created
- Log out the current administrator and log in with this new user
- Access to the following endpoint
https://pimcore_instance/admin/customermanagementframework/duplicates/listand the results will be returned to this unauthorized user
Impact
An unauthorized user can access PII data from customers without being authorized to.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | pimcore/customer-management-framework-bundle | < 4.0.6 | 4.0.6 |
References
- https://github.com/pimcore/customer-data-framework/security/advisories/GHSA-c38c-c8mh-vq68
- https://nvd.nist.gov/vuln/detail/CVE-2024-21666
- https://github.com/pimcore/customer-data-framework/commit/c33c0048390ef0cf98b801d46a81d0762243baa6
- https://github.com/pimcore/customer-data-framework
- https://github.com/pimcore/customer-data-framework/blob/b4af625ef327c58d05ef7cdf145fa749d2d4195e/src/Controller/Admin/DuplicatesController.php#L43
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-284- Platform
- Composer
- Package
pimcore/customer-management-framework-bundle- Disclosed
- 10.01.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-c38c-c8mh-vq68 - CC BY 4.0
Vulnerability history: pimcore/customer-management-framework-bundle
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 05.2023 01.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 7
Disclosures per year
- 2023: 6
- 2024: 2
- 2025: 1
- 2026: 0
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