Medium severity · published Mar 23, 2023
CVE-2023-28334
Authenticated users were able to enumerate other users' names via the learning plans page
4.3
CVSS
0.6%
EPSS
No
On KEV
Description
Authenticated users were able to enumerate other users' names via the learning plans page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Moodle · Moodle
after 4.0.0 before 4.0.7; 4.0.0; 4.1.0; 4.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28334
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28334
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2179423
Patch
https://moodle.org/mod/forum/discuss.php?d=445066
More from Moodle
10.0
CVE-2019-3809
A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions
9.8
CVE-2025-67856
Moodle: moodle: privilege escalation via incomplete role checks in badge awarding
9.8
CVE-2025-26533
SQL injection risk in course search module list filter
9.8
CVE-2024-33999
The referrer URL used by MFA required additional sanitizing, rather than being used directly
9.8
CVE-2023-5550
In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user who also has direct access to the web server outside of the…