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CVE-2026-86416— ILIAS before 9.23, 10.11, and 11.4 Missing Authorization in Group Object Action Methods

Quick assessment

Affected
ILIAS-eLearning e.V. ILIAS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ILIAS是德国ILIAS组织开源的一套学习管理系统。 ILIAS 9.23之前版本、10.11之前版本和11.4之前版本存在授权问题漏洞，该漏洞源于ilObjGroupGUI中的saveMapSettingsObject()和updateGroupTypeObject()函数在未经写权限检查的情况下执行状态更改操作，可能导致仅有只读权限的认证用户构造POST请求修改组地图设置和教学模板分配，从而改变所有成员的组模式和权限。

CVSS 5.4 · Medium EPSS 0.25% · P17

Affected Version Matrix 3

VendorProduct Version RangeStatus
ILIAS-eLearning e.V. ILIAS 9.0< 9.23 affected
10.0< 10.11 affected
11.0< 11.4 affected
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I. Basic Information for CVE-2026-86416

Vulnerability Information
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Vulnerability Title
ILIAS before 9.23, 10.11, and 11.4 Missing Authorization in Group Object Action Methods
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
ILIAS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ILIAS是德国ILIAS组织开源的一套学习管理系统。 ILIAS 9.23之前版本、10.11之前版本和11.4之前版本存在授权问题漏洞，该漏洞源于ilObjGroupGUI中的saveMapSettingsObject()和updateGroupTypeObject()函数在未经写权限检查的情况下执行状态更改操作，可能导致仅有只读权限的认证用户构造POST请求修改组地图设置和教学模板分配，从而改变所有成员的组模式和权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ILIAS-eLearning e.V. ILIAS 9.0 ~ 9.23 -

II. Public POCs for CVE-2026-86416

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III. Intelligence Information for CVE-2026-86416

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Patches & Fixes for CVE-2026-86416 (1)

Vendor Advisories for CVE-2026-86416 (1)

Security Blog Posts for CVE-2026-86416 (2)

IV. Related Vulnerabilities

Same product: ILIAS
Same vendor: ILIAS-eLearning e.V.
Same weakness: CWE-862

V. Comments for CVE-2026-86416

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