CVE-2026-86416: Missing Authorization in ILIAS-eLearning e.V. ILIAS
ILIAS versions before 9.23, 10.11, and 11.4 have an authorization bypass vulnerability in the ilObjGroupGUI component. This flaw allows authenticated users with read-only access to a group to perform state-changing operations without proper write permission checks. Specifically, they can modify group map settings and didactic template assignments, altering group modes and permissions for all members. The vulnerability has a medium severity rating with a CVSS 4.0 score of 5.3. No official patch or remediation guidance is currently provided by the vendor.
AI Analysis
Technical Summary
CVE-2026-86416 is an authorization bypass vulnerability affecting ILIAS eLearning platform versions prior to 9.23, 10.11, and 11.4. The issue exists in the ilObjGroupGUI class where the methods saveMapSettingsObject() and updateGroupTypeObject() execute state-changing operations without verifying write permissions. This allows authenticated users who only have read access to a group to craft POST requests that modify group map settings and didactic template assignments, effectively changing group modes and permissions for all group members.
Potential Impact
An authenticated user with read-only access to a group can escalate their privileges by modifying group settings and permissions. This could lead to unauthorized changes affecting all members of the group, potentially disrupting group management and access controls within the ILIAS platform.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted users and monitor for unusual group setting changes. Avoid granting unnecessary read access to sensitive groups.
CVE-2026-86416: Missing Authorization in ILIAS-eLearning e.V. ILIAS
Description
ILIAS versions before 9.23, 10.11, and 11.4 have an authorization bypass vulnerability in the ilObjGroupGUI component. This flaw allows authenticated users with read-only access to a group to perform state-changing operations without proper write permission checks. Specifically, they can modify group map settings and didactic template assignments, altering group modes and permissions for all members. The vulnerability has a medium severity rating with a CVSS 4.0 score of 5.3. No official patch or remediation guidance is currently provided by the vendor.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/ILIASRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86416 is an authorization bypass vulnerability affecting ILIAS eLearning platform versions prior to 9.23, 10.11, and 11.4. The issue exists in the ilObjGroupGUI class where the methods saveMapSettingsObject() and updateGroupTypeObject() execute state-changing operations without verifying write permissions. This allows authenticated users who only have read access to a group to craft POST requests that modify group map settings and didactic template assignments, effectively changing group modes and permissions for all group members.
Potential Impact
An authenticated user with read-only access to a group can escalate their privileges by modifying group settings and permissions. This could lead to unauthorized changes affecting all members of the group, potentially disrupting group management and access controls within the ILIAS platform.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted users and monitor for unusual group setting changes. Avoid granting unnecessary read access to sensitive groups.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-07T12:12:59.349Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9eb39eacd9273b49a323ee
Added to database: 09/07/2026, 12:52:46 UTC
Last enriched: 09/07/2026, 13:07:53 UTC
Last updated: 09/07/2026, 13:07:54 UTC
Views: 5
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