Vulnerability in Moodle

CVE-2015-5331

Moodle 2.9.x before 2.9.3 does not properly check the contact list before authorizing message transmission, which allows remote authenticated users to bypass intended access restrictions and conduct spam attacks via the messaging API.

Published · last modified .

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:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.8th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2015-5331: held from 0.013 to 0.013.

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

Affected products

  • Moodle — versions 2.9.0, 2.9.1, 2.9.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2015-5331?
CVE-2015-5331 is a medium-severity vulnerability in Moodle, classified under CWE-254. CVSS score: 4.3/10. Published 2016-02-22.
How severe is CVE-2015-5331?
Medium severity. CVSS v3 base score is 4.3 out of 10.