CVE-2026-81908 - CERT CVE
ID CVE-2026-81908
Sažetak Concrete CMS 9.2.0 to 9.5.2 contain a missing authorization vulnerability in the REST API Groups list endpoint. The listGroups() method in concrete/src/Api/Controller/Groups.php registers a permissions checker callback that unconditionally returns true, so no per-object (tree node) authorization is enforced when the group collection is returned. An authenticated user whose API token carries the groups:read scope can call GET /ccm/api/1.0/groups and receive every group on the site regardless of the view permissions on those groups, disclosing the organization's group structure, roles, and access hierarchy. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 6.0 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.
Reference
CVSS
Base: 0.0
Impact: None
Exploitability:None
Pristup
VektorSloženostAutentikacija
None None None
Impact
PovjerljivostCjelovitostDostupnost
None None None
CVSS vektor None
Zadnje važnije ažuriranje 11-09-2026 - 20:19
Objavljeno 11-09-2026 - 18:16