CVE-2026-53905

MCO does not properly enforce authorization checks in the /customer/servlet/mco/webapi/admin-view-hierarchy/get-acl-tree-structure endpoint. An authenticated, low-privileged user can retrieve administrator access control structures without proper authorization checks. This may expose sensitive permission mappings and internal configuration details. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://cert.pl/en/posts/2026/07/CVE-2026-53902	Third Party Advisory
https://mco.mycomplianceoffice.com/	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:mycomplianceoffice:mycomplianceoffice:25.3.3.1:*:*:*:*:*:*:*

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) MCO no aplica correctamente las comprobaciones de autorización en el endpoint /customer/servlet/mco/webapi/admin-view-hierarchy/get-acl-tree-structure. Un usuario autenticado y con bajos privilegios puede recuperar estructuras de control de acceso de administrador sin las comprobaciones de autorización adecuadas. Esto puede exponer asignaciones de permisos sensibles y detalles de configuración internos. Debido a que los intentos de contacto con el proveedor no tuvieron éxito, la vulnerabilidad solo se ha confirmado en la versión 25.3.3.1, pero también puede afectar a otras versiones.

Information

Published : 2026-07-01 13:17

Updated : 2026-10-25 17:10

NVD link : CVE-2026-53905

Mitre link : CVE-2026-53905

CVE.ORG link : CVE-2026-53905

JSON object : View

Products Affected

mycomplianceoffice

mycomplianceoffice

CWE

CWE-863

Incorrect Authorization

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