CVE-2021-32473

Name: CVE-2021-32473
Creator: NVD / NIST
Published: 2022-03-11T18:15:15.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.99%

Last modified Jun 17, 2026

CVE-2021-32473 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. It was possible for a student to view their quiz grade before it had been released, using a quiz web service. Moodle 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, 3.5 to 3.5.17 and earlier unsupported versions are affected. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

It was possible for a student to view their quiz grade before it had been released, using a quiz web service. Moodle 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, 3.5 to 3.5.17 and earlier unsupported versions are affected

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.99%

58.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Moodle	Moodle	< 3.5.18
Moodle	Moodle	>= 3.8.0, < 3.8.9
Moodle	Moodle	>= 3.9.0, < 3.9.7
Moodle	Moodle	>= 3.10.0, < 3.10.4

References

https://moodle.org/mod/forum/discuss.php?d=422307Patch, Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=422307Patch, Vendor Advisory

Timeline

Published: Mar 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32473?

How severe is CVE-2021-32473?

CVE-2021-32473 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32473?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32473?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST