Magento Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2021-21029
Magento versions 2.4.1 (and earlier) 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are affected by a Reflected Cross-site Scripting vulnerability via 39file39 parameter. Successful exploitation could lead to arbitrary JavaScript execution in the victim39s browser. Access to the admin console is required for successful exploitation.