{"id":"CVE-2026-86416","summary":"ILIAS before 9.23, 10.11, and 11.4 Missing Authorization in Group Object Action Methods","details":"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.","modified":"2026-09-10T03:30:31.660108481Z","published":"2026-09-07T12:23:54.710Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86416.json"},"references":[{"type":"ADVISORY","url":"https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=940"},{"type":"ADVISORY","url":"https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=941"},{"type":"ADVISORY","url":"https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=942"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86416.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86416"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ilias-before-9.23-10.11-and-11.4-missing-authorization-in-group-object-action-methods"},{"type":"FIX","url":"https://github.com/ILIAS-eLearning/ILIAS/commit/16bca712847f83440fa051cdbb15b38296357c79"},{"type":"PACKAGE","url":"https://github.com/ILIAS-eLearning/ILIAS"},{"type":"ARTICLE","url":"https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L560-L569"},{"type":"ARTICLE","url":"https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L830-L858"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ilias-elearning/ilias","events":[{"introduced":"fde780b71853eddee7c2efc409b2f82335475cb7"},{"fixed":"74b0c25cce5238b4a7414b84b3308165e0afa334"},{"introduced":"cf8158610d18ee0277ee743de16b79d09bcf7af6"},{"fixed":"2a3758ee3b01e5c66922e08f58a2189146b884d4"},{"introduced":"2151d66e5092fc346bf0bacb49ab7edb468596b3"},{"fixed":"6900ae43472a3f5042a7547035c1a456a80b76ed"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"9.0"},{"fixed":"9.23"},{"introduced":"10.0"},{"fixed":"10.11"},{"introduced":"11.0"},{"fixed":"11.4"}]}}],"versions":["v9.22","v11.3","v10.10","v9.21","v11.2","v10.9","v9.20","v11.1","v10.8","v11.0","v9.19","v10.7","v9.18","v10.6","v3.8","v9.17","v10.5","v10.4","v9.16","v10.3","v9.15","v10.2","v9.13","v10.0","v9.12","v9.10","v9.8","v9.7","v9.6","v9.5","v9.4","v9.3","v9.1","v9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86416.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}]}