A flaw was found in Moodle. When enrolling a user into a course while assigning them to a group, the application does not verify whether the selected group actually belongs to that course. An authenticated user with teacher privileges could exploit this flaw to add users to groups within courses they do not have authorization to access.

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Fixes

Solution

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Workaround

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History

Wed, 30 Sep 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Moodle
Moodle moodle
Vendors & Products Moodle
Moodle moodle

Wed, 30 Sep 2026 09:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in Moodle. When enrolling a user into a course while assigning them to a group, the application does not verify whether the selected group actually belongs to that course. An authenticated user with teacher privileges could exploit this flaw to add users to groups within courses they do not have authorization to access.
Title Moodle: group validation missing when enrolling user to course
Weaknesses CWE-842
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: fedora

Published:

Updated: 2026-09-30T08:36:17.130Z

Reserved: 2026-09-29T14:03:38.494Z

Link: CVE-2026-102585

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-30T09:17:15.763

Modified: 2026-09-30T09:17:15.763

Link: CVE-2026-102585

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T11:00:15Z

Weaknesses