CVE-2021-36401
Moodle vulnerable to Stored Cross-site Scripting
4.8
MEDIUM
CVSS 3.1
EPSS 0.27%
Description
In Moodle, ID numbers exported in HTML data formats required additional sanitizing to prevent a local stored XSS risk.
How to fix CVE-2021-36401
To remediate CVE-2021-36401, upgrade the affected package to a fixed version below.
- Bitnami/moodle—upgrade to 3.9.8 or later
- Packagist/moodle/moodle—upgrade to 3.11.1 or later
Is CVE-2021-36401 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.9.8, >= 3.10.0, < 3.10.5, >= 3.11.0, < 3.11.1
- >= 3.11.0-beta, < 3.11.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |