Magento Improper Access Control Vulnerability - CVE-2021-36036
Magento versions 2.4.2 (and earlier) 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an improper access control vulnerability within Magento39s Media Gallery Upload workflow. By storing a specially crafted file in the website gallery an authenticated attacker with administrative privilege can gain access to delete the .htaccess file. This could result in the attacker achieving remote code execution.