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CVE-2023-28334

14
FAUCET Score

CVE-2023-28334 describes an information disclosure vulnerability in Moodle where authenticated users can enumerate other user names through the learning plans page. Rated Medium severity with a CVSS score of 4.3, this low-complexity vulnerability allows an attacker to gain limited confidentiality without affecting integrity or availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
> 4.0.0, < 4.0.7CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:4.0.0:-:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:4.1.0:-:*:*:*:*:*:*
4.1.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:4.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 53rd percentile among its peer group of 21,974 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 4.1.2
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 4.0.7
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.11.13
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.9.20

Vendor Advisories (1)

composerGHSA-hh52-g5c4-wprhmedium

Moodle may allow authenticated users to enumerate other user's names via learning plans page

Mar 23, 2023

References

bugzilla.redhat.com / show_bug.cgi
moodle.org / mod/forum/discuss.php
PatchVendor Advisory