What is CVE-2018-1043?

CVE-2018-1043 is a medium-severity vulnerability in Moodle. CVSS score: 6.5/10. Published 2018-01-22.

How severe is CVE-2018-1043?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Moodle

CVE-2018-1043

In Moodle 3.x, the setting for blocked hosts list can be bypassed with multiple A record hostnames.

Published 2018-01-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Moodle — versions 3.2.0, 3.2.1, 3.2.2
Moodle 3.x — versions Moodle 3.x

References

www.securityfocus.com/bid/102769 (VDB Entry, Third Party Advisory, vdb-entry)
moodle.org/mod/forum/discuss.php (Vendor Advisory)

Frequently asked questions

What is CVE-2018-1043?: CVE-2018-1043 is a medium-severity vulnerability in Moodle. CVSS score: 6.5/10. Published 2018-01-22.
How severe is CVE-2018-1043?: Medium severity. CVSS v3 base score is 6.5 out of 10.