Moodle: quiz notifications sent to suspended participants

published 2025-10-23 12 mo ago modified 2026-11-05 3 d ago also BIT-moodle-2025-62394 , EUVD-2025-35672 , GHSA-8fcv-4qp9-pg32

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits: 0; none known

Moodle failed to verify enrolment status correctly when sending quiz notifications. As a result, suspended or inactive users might receive quiz-related messages, leaking limited course information.

Patch / fix

fixed in 3 links 1

packagist moodle/moodle 4.5.7, 5.0.3
bitnami moodle 4.5.7, 5.0.3
moodle moodle 4.5.7, 5.0.3

github.com/moodle/moodle@022bfbf 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-2025-62394 updated 2026-06-28 cvss 4.3

moodle: Quiz notifications sent to suspended participants

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: 12 mo ago (2025-10-23)

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% 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:L/I:N/A:N
GitHub	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
OSV	3.1	4.3	CVSS:3.1/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	>=5.0.0-beta, <5.0.3 >=4.5.0-beta, <4.5.7	5.0.3 4.5.7
bitnami	moodle	>=4.5.0, <4.5.7 >=5.0.0, <5.0.3	4.5.7 5.0.3

Classification

Weakness

CWE-863 Incorrect Authorization

References

github.com /moodle/moodle/commit/022bfbfb564d8f3866a43d26eed215213bbdd28a
web
access.redhat.com /security/cve/CVE-2025-62394
vdb-entry, web, third-party-advisory, advisory
bugzilla.redhat.com /show_bug.cgi?id=2404427
issue-tracking, web, third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2025-62394
advisory, web
github.com /moodle/moodle
package
moodle.org /mod/forum/discuss.php?d=470383
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