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Servers and applications

CVE-2021-21030

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are vulnerable to a stored cross-site scripting (XSS) in the customer address upload feature. Successful exploitation could lead to arbitrary JavaScript execution in the victim's browser. Exploitation of this issue requires user interaction.

Severity
High 8.1
Published
11 Feb 2021
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
2.3.6
Sources
NVD

Affected software

SoftwareAffected versions
Magento / Adobe CommerceServers and applications · cpe:a:magento:magento
  • Every version before 2.3.6
  • Version 2.3.6
  • Version 2.4.0
  • Version 2.4.0-p1
  • Version 2.4.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-21030
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-21030