Medium severity5.4NVD Advisory· Published Sep 7, 2026
CVE-2026-86416
CVE-2026-86416
Description
ILIAS versions before 9.23, 10.11, and 11.4 contain an authorization bypass vulnerability in ilObjGroupGUI where saveMapSettingsObject() and updateGroupTypeObject() perform state-changing operations without write permission checks. Authenticated users with only read access to a group can craft POST requests to modify group map settings and didactic template assignments, changing group modes and permissions for all members.
Affected products
1Patches
Vulnerability mechanics
References
7- docu.ilias.de/ilias.phpnvd
- docu.ilias.de/ilias.phpnvd
- docu.ilias.de/ilias.phpnvd
- github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.phpnvd
- github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.phpnvd
- github.com/ILIAS-eLearning/ILIAS/commit/16bca712847f83440fa051cdbb15b38296357c79nvd
- www.vulncheck.com/advisories/ilias-before-9.23-10.11-and-11.4-missing-authorization-in-group-object-action-methodsnvd
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