CVE-2021-43558

Description

A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. A URL parameter in the filetype site administrator tool required extra sanitizing to prevent a reflected XSS risk.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.61%
Vendor Advisory moodle.org
Affected: n/a moodle
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2021515 issue tracking third party advisory
https://moodle.org/mod/forum/discuss.php?d=429097 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-43558?
CVE-2021-43558 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43558?
To fix CVE-2021-43558, 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-2021-43558 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-43558 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-2021-43558?
CVE-2021-43558 affects n/a moodle.
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