Moodle does not properly implement group-based access restrictions

published 2016-02-22 10 y ago modified 2026-06-17 4 mo ago also GHSA-gmhr-6f43-7qpj , EUVD-2022-3979

cvss: 4.3; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

The core_enrol_get_enrolled_users web service in enrol/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly implement group-based access restrictions, which allows remote authenticated users to obtain sensitive course-participant information via a web-service request.

Patch / fix

fixed in 1 links 3

packagist moodle/moodle 2.7.11, 2.8.9, 2.9.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-5339 updated 2025-11-21

moodle: Multiple security issues fixed in 2.7.11, 2.8.9, 2.9.3

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	4.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N
GitHub	3.0	4.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	moodle/moodle	<2.7.11 >=2.8.0, <2.8.9 >=2.9.0, <2.9.3	2.7.11 2.8.9 2.9.3

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-264 Permissions, Privileges, and Access Controls

References

Sources

CVE List CVE-2015-5339
GitHub Advisory GHSA-gmhr-6f43-7qpj
NVD CVE-2015-5339

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary