What is CVE-2018-10889?

CVE-2018-10889 is a medium-severity vulnerability in Moodle, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.3/10. Published 2018-07-10.

How severe is CVE-2018-10889?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Information disclosure in Moodle

CVE-2018-10889

A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7. No option existed to omit logs from data privacy exports, which may contain details of other users who interacted with the requester.

Published 2018-07-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.021 (81.1th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: -0.000

Affected products

Moodle
[Unknown] Moodle — versions moodle 3.3.7, moodle 3.4.4, moodle 3.5.1

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

www.securityfocus.com/bid/104733 (VDB Entry, Third Party Advisory, vdb-entry)
bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
moodle.org/mod/forum/discuss.php (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2018-10889?: CVE-2018-10889 is a medium-severity vulnerability in Moodle, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.3/10. Published 2018-07-10.
How severe is CVE-2018-10889?: Medium severity. CVSS v3 base score is 4.3 out of 10.