Moodle Exposure of Sensitive Information to an Unauthorized Actor

published 2017-11-20 8 y ago modified 2026-06-17 4 mo ago also GHSA-rjh8-w8jg-xwq5 , EUVD-2022-5189

cvss: 4.3; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits: 0; none known

In Moodle 3.x, students can find out email addresses of other students in the same course. Using search on the Participants page, students could search email addresses of all participants regardless of email visibility. This allows enumerating and guessing emails of other students.

Patch / fix

fixed in 1

packagist moodle/moodle 3.1.9, 3.2.6, 3.3.3

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-2017-15110 updated 2025-11-21 cvss 4.3

moodle: Students can find out email addresses of other students in the same course

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

1.16% chance of exploitation in the next 30 days, higher than 67% 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	>=3.1, <3.1.9 >=3.2, <3.2.6 >=3.3, <3.3.3	3.1.9 3.2.6 3.3.3

Affected products

n/a Moodle 3.x

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

moodle.org /mod/forum/discuss.php?d=361784
web, issue-tracking, mitigation, vendor-advisory
securityfocus.com /bid/101909
vdb-entry, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2017-15110
advisory
github.com /moodle/moodle
package

Sources

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