Group Assignment Flaw in Moodle Affects Teacher Privileges
CVE-2026-102585

4.3MEDIUM

Key Information:

Status
Vendor
CVE Published:
30 September 2026

What is CVE-2026-102585?

A vulnerability exists in Moodle that allows authenticated users with teacher privileges to enroll students in groups outside of their assigned course. This flaw arises because the system fails to validate whether a group belongs to the course during the enrollment process. As a result, unauthorized access can be granted, leading to potential misuse of course resources and group functionalities.

References

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=...
https://access.redhat.com/security/cve/CVE-2026-102585
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https://bugzilla.redhat.com/show_bug.cgi?id=2543639
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CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Upstream acknowledges Paul Holden as the original reporter.
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