CVE-2026-86416

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=940
https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=941
https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=942
https://github.com/ILIAS-eLearning/ILIAS
https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L560-L569
https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L830-L858
https://github.com/ILIAS-eLearning/ILIAS/commit/16bca712847f83440fa051cdbb15b38296357c79
https://www.vulncheck.com/advisories/ilias-before-9.23-10.11-and-11.4-missing-authorization-in-group-object-action-methods

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-07 13:20

Updated : 2026-09-08 20:05

NVD link : CVE-2026-86416

Mitre link : CVE-2026-86416

CVE.ORG link : CVE-2026-86416

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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