Moodle: moodle allows course self-enrolment before completing mfa

published 2025-04-25 18 mo ago modified 2026-09-08 2 mo ago also BIT-moodle-2025-3634 , EUVD-2025-12531 , GHSA-qhc7-xhc2-7p7w

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits: 0; none known

A security vulnerability was discovered in Moodle that allows students to enroll themselves in courses without completing all the necessary safety checks. Specifically, users can sign up for courses prematurely, even if they haven't finished two-step verification processes.

Patch / fix

fixed in 3 links 1

packagist moodle/moodle 4.3.12, 4.4.8, 4.5.4
bitnami moodle 4.3.12, 4.4.8, 4.5.4
moodle moodle 4.3.12, 4.4.8, 4.5.4

github.com/moodle/moodle@b096513 commit

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-2025-3634 updated 2026-06-28 cvss 4.3

moodle: Moodle Allows Course Self-Enrolment Before Completing MFA

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

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 18 mo ago (2025-04-25)

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
GitHub	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
OSV	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	moodle/moodle	>=4.3.0-beta, <4.3.12 >=4.4.0-beta, <4.4.8 >=4.5.0-beta, <4.5.4	4.3.12 4.4.8 4.5.4
bitnami	moodle	>=4.3.0, <4.3.12 >=4.4.0, <4.4.8 >=4.5.0, <4.5.4	4.3.12 4.4.8 4.5.4

Classification

Weakness

CWE-287 Improper Authentication

References

github.com /moodle/moodle/commit/b0965139014b459c3cb96e4fff45af4d5e09e261
web
access.redhat.com /security/cve/CVE-2025-3634
vdb-entry, web, third-party-advisory, advisory
bugzilla.redhat.com /show_bug.cgi?id=2359707
issue-tracking, web, report
nvd.nist.gov /vuln/detail/CVE-2025-3634
advisory, web
github.com /moodle/moodle
package
moodle.org /mod/forum/discuss.php?d=467596
web

Sources

Fencer Vulns 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