Auth bypass in Moodle

CVE-2021-32472

Teachers exporting a forum in CSV format could receive a CSV of forums from all courses in some circumstances. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6 and 3.8 to 3.8.8 are affected.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.008 (54.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% 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-2021-32472: held from 0.008 to 0.008.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

  • Moodle
  • Moodle — versions 3.10 to 3.10.3, 3.9 to 3.9.6 and 3.8 to 3.8.8

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-32472?
CVE-2021-32472 is a medium-severity vulnerability in Moodle, classified under Missing Authorization. CVSS score: 4.3/10. Published 2022-03-11.
How severe is CVE-2021-32472?
Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2021-32472 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.