CVE-2021-21020
Magento Commerce Improper Access Control Vulnerability
5.3
MEDIUM
CVSS 3.1
EPSS 0.11%
Description
Magento versions 2.4.1 (and earlier), 2.4.0 (and earlier) and 2.3.6 (and earlier) are vulnerable to an access control bypass vulnerability in the Login as Customer module. Successful exploitation could lead to unauthorized access to restricted resources.
How to fix CVE-2021-21020
To remediate CVE-2021-21020, upgrade the affected package to a fixed version below.
- —upgrade to 2.3.6 or later
- —upgrade to 2.3.6 or later
- —no fix listed
Is CVE-2021-21020 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.3.6, >= 2.4.0, < 2.4.1
- from 0, < 2.3.6
- from 0, <= 2.0.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N |