CVE-2021-36399

Description

In Moodle, ID numbers displayed in the quiz override screens required additional sanitizing to prevent a stored XSS risk.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.68% Top 30%
Vendor Advisory moodle.org
Affected: n/a Moodle
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-36399?
CVE-2021-36399 has been scored as a medium severity vulnerability.
How to fix CVE-2021-36399?
To fix CVE-2021-36399, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-36399 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-36399 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-36399?
CVE-2021-36399 affects n/a Moodle.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.