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CVE-2021-36568

MEDIUMCVSS 5.4/10EPSS 0.79%

Last modified

CVE-2021-36568 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In certain Moodle products after creating a course, it is possible to add in a arbitrary "Topic" a resource, in this case a "Database" with the type "Text" where its values "Field name" and "Field description" are vulnerable to Cross Site Scripting Stored(XSS). This affects Moodle 3.11 and Moodle 3.10.4 and Moodle 3.9.7.. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

In certain Moodle products after creating a course, it is possible to add in a arbitrary "Topic" a resource, in this case a "Database" with the type "Text" where its values "Field name" and "Field description" are vulnerable to Cross Site Scripting Stored(XSS). This affects Moodle 3.11 and Moodle 3.10.4 and Moodle 3.9.7.

Metrics

CVSS 3.1
5.4/10

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

EPSS Probability
0.79%

51.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MoodleMoodle3.9.7
MoodleMoodle3.10.4
MoodleMoodle3.11.0
FedoraprojectFedora35
FedoraprojectFedora36

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-36568?
In certain Moodle products after creating a course, it is possible to add in a arbitrary "Topic" a resource, in this case a "Database" with the type "Text" where its values "Field name" and "Field description" are vulnerable to Cross Site Scripting Stored(XSS). This affects Moodle 3.11 and Moodle 3.10.4 and Moodle 3.9.7.
How severe is CVE-2021-36568?
CVE-2021-36568 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36568?
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-2021-36568?

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

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Source: NVD / NIST