CVE-2026-86416
MEDIUMCVSS 5.4Description
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.
Timeline
Published:September 7th, 2026 1:20 PM
Last modified:September 8th, 2026 8:05 PM
CVSS Scoring
CVSS v3: 5.4 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- 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
Source: NIST NVD · Data may lag official sources by up to one minute