Medium severity5.3NVD Advisory· Published Feb 11, 2021· Updated Jun 17, 2026
CVE-2021-21020
CVE-2021-21020
Description
Magento versions 2.4.1 (and earlier), 2.4.0-p1 (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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
magento/community-editionPackagist | < 2.3.6 | 2.3.6 |
magento/community-editionPackagist | >= 2.4.0, < 2.4.1-p1 | 2.4.1-p1 |
magento/project-community-editionPackagist | <= 2.0.2 | — |
Affected products
14cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*+ 9 more
- cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*range: <2.3.6
- cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*range: <2.3.6
- cpe:2.3:a:magento:magento:2.3.6:-:*:*:commerce:*:*:*
- cpe:2.3:a:magento:magento:2.3.6:-:*:*:open_source:*:*:*
- cpe:2.3:a:magento:magento:2.4.0:-:*:*:commerce:*:*:*
- cpe:2.3:a:magento:magento:2.4.0:-:*:*:open_source:*:*:*
- cpe:2.3:a:magento:magento:2.4.0:p1:*:*:commerce:*:*:*
- cpe:2.3:a:magento:magento:2.4.0:p1:*:*:open_source:*:*:*
- cpe:2.3:a:magento:magento:2.4.1:-:*:*:commerce:*:*:*
- cpe:2.3:a:magento:magento:2.4.1:-:*:*:open_source:*:*:*
- osv-coords3 versionspkg:bitnami/magentopkg:composer/magento/community-editionpkg:composer/magento/project-community-edition
< 2.3.6+ 2 more
- (no CPE)range: < 2.3.6
- (no CPE)range: < 2.3.6
- (no CPE)range: <= 2.0.2
- Range: unspecified
Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-2j6v-829g-885qghsaADVISORY
- helpx.adobe.com/security/products/magento/apsb21-08.htmlnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-21020ghsaADVISORY
News mentions
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