What is CVE-2020-9387?

CVE-2020-9387 is a medium-severity vulnerability in Mahara, classified under Information Disclosure. CVSS score: 4.3/10. Published 2020-04-30.

How severe is CVE-2020-9387?

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

Information disclosure in Mahara

CVE-2020-9387

In Mahara 19.04 before 19.04.5 and 19.10 before 19.10.3, account details are shared in the Elasticsearch results for accounts that are not accessible when the config setting 'Isolated institutions' is turned on.

Vulnerability class: Information Disclosure

Published 2020-04-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Mahara — versions 20.04

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

bugs.launchpad.net/mahara/+bug/1836984 (Patch, Third Party Advisory, Issue Tracking)
mahara.org/interaction/forum/topic.php (Vendor Advisory)

Frequently asked questions

What is CVE-2020-9387?: CVE-2020-9387 is a medium-severity vulnerability in Mahara, classified under Information Disclosure. CVSS score: 4.3/10. Published 2020-04-30.
How severe is CVE-2020-9387?: Medium severity. CVSS v3 base score is 4.3 out of 10.