Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 14.2%
CVSS Severity
CVSS v3 Score 7.1
Products affected by CVE-2026-53905
-
cpe:2.3:a:mycomplianceoffice:mycomplianceoffice:25.3.3.1