Vulnerability-Lookup

GHSA-4976-QG89-R3VV

Vulnerability from github – Published: 2026-09-07 15:33 – Updated: 2026-09-07 15:33

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.

Severity

5.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

5.3 (Medium)


                  
                    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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-86416"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-07T13:20:40Z",
    "severity": "MODERATE"
  },
  "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.",
  "id": "GHSA-4976-qg89-r3vv",
  "modified": "2026-09-07T15:33:52Z",
  "published": "2026-09-07T15:33:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86416"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ILIAS-eLearning/ILIAS/commit/16bca712847f83440fa051cdbb15b38296357c79"
    },
    {
      "type": "WEB",
      "url": "https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui\u0026cmdNode=wy:ll:6t\u0026cmdClass=ilBlogPostingGUI\u0026cmd=previewFullscreen\u0026ref_id=15821\u0026blpg=940"
    },
    {
      "type": "WEB",
      "url": "https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui\u0026cmdNode=wy:ll:6t\u0026cmdClass=ilBlogPostingGUI\u0026cmd=previewFullscreen\u0026ref_id=15821\u0026blpg=941"
    },
    {
      "type": "WEB",
      "url": "https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui\u0026cmdNode=wy:ll:6t\u0026cmdClass=ilBlogPostingGUI\u0026cmd=previewFullscreen\u0026ref_id=15821\u0026blpg=942"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ILIAS-eLearning/ILIAS"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L560-L569"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L830-L858"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/ilias-before-9.23-10.11-and-11.4-missing-authorization-in-group-object-action-methods"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-86416 (GCVE-0-2026-86416)

Vulnerability from cvelistv5 – Published: 2026-09-07 12:23 – Updated: 2026-09-07 12:23

Title

ILIAS before 9.23, 10.11, and 11.4 Missing Authorization in Group Object Action Methods

Summary

Severity

5.3 (Medium)


                        
                          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

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

8 references

URL	Tags
https://docu.ilias.de/ilias.php?baseClass=ilrepos…	vendor-advisory
https://docu.ilias.de/ilias.php?baseClass=ilrepos…	vendor-advisory
https://docu.ilias.de/ilias.php?baseClass=ilrepos…	vendor-advisory
https://github.com/ILIAS-eLearning/ILIAS/commit/1…	patch
https://github.com/ILIAS-eLearning/ILIAS/blob/v11…	technical-description
https://github.com/ILIAS-eLearning/ILIAS/blob/v11…	technical-description
https://github.com/ILIAS-eLearning/ILIAS	product
https://www.vulncheck.com/advisories/ilias-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
ILIAS-eLearning e.V.	ILIAS	Affected: 9.0 , < 9.23 (custom) Affected: 10.0 , < 10.11 (custom) Affected: 11.0 , < 11.4 (custom) cpe:2.3:a:ilias:ilias:::::::: cpe:2.3:a:ilias:ilias:::::::: cpe:2.3:a:ilias:ilias::::::::

Date Public

2026-09-03 00:00

Credits

Siyang Wu

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/ILIAS-eLearning/ILIAS",
          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/ILIAS-eLearning/ILIAS",
          "product": "ILIAS",
          "repo": "https://github.com/ILIAS-eLearning/ILIAS",
          "vendor": "ILIAS-eLearning e.V.",
          "versions": [
            {
              "lessThan": "9.23",
              "status": "affected",
              "version": "9.0",
              "versionType": "custom"
            },
            {
              "lessThan": "10.11",
              "status": "affected",
              "version": "10.0",
              "versionType": "custom"
            },
            {
              "lessThan": "11.4",
              "status": "affected",
              "version": "11.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:ilias:ilias:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "9.23",
                  "versionStartIncluding": "9.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:ilias:ilias:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.11",
                  "versionStartIncluding": "10.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:ilias:ilias:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "11.4",
                  "versionStartIncluding": "11.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Siyang Wu"
        }
      ],
      "datePublic": "2026-09-03T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-07T12:23:54.710Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "ILIAS 11.4 Security Advisory (Mantis 0048260)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui\u0026cmdNode=wy:ll:6t\u0026cmdClass=ilBlogPostingGUI\u0026cmd=previewFullscreen\u0026ref_id=15821\u0026blpg=942"
        },
        {
          "name": "ILIAS 10.11 Security Advisory (Mantis 0048260)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui\u0026cmdNode=wy:ll:6t\u0026cmdClass=ilBlogPostingGUI\u0026cmd=previewFullscreen\u0026ref_id=15821\u0026blpg=941"
        },
        {
          "name": "ILIAS 9.23 Security Advisory (Mantis 0048260)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui\u0026cmdNode=wy:ll:6t\u0026cmdClass=ilBlogPostingGUI\u0026cmd=previewFullscreen\u0026ref_id=15821\u0026blpg=940"
        },
        {
          "name": "Group: add missing permission checks in GUI (48260)",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/ILIAS-eLearning/ILIAS/commit/16bca712847f83440fa051cdbb15b38296357c79"
        },
        {
          "name": "ilObjGroupGUI::updateGroupTypeObject() at v11.3",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L560-L569"
        },
        {
          "name": "ilObjGroupGUI::saveMapSettingsObject() at v11.3",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/ILIAS-eLearning/ILIAS/blob/v11.3/components/ILIAS/Group/classes/class.ilObjGroupGUI.php#L830-L858"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/ILIAS-eLearning/ILIAS"
        },
        {
          "name": "VulnCheck Advisory: ILIAS before 9.23, 10.11, and 11.4 Missing Authorization in Group Object Action Methods",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/ilias-before-9.23-10.11-and-11.4-missing-authorization-in-group-object-action-methods"
        }
      ],
      "title": "ILIAS before 9.23, 10.11, and 11.4 Missing Authorization in Group Object Action Methods",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-86416",
    "datePublished": "2026-09-07T12:23:54.710Z",
    "dateReserved": "2026-09-07T12:12:59.349Z",
    "dateUpdated": "2026-09-07T12:23:54.710Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-4976-QG89-R3VV

CVE-2026-86416 (GCVE-0-2026-86416)

Tags

Sightings

Nomenclature