CVE-2021-36036

CRITICAL9.1EPSS 1.6%

Magento improper access control vulnerability within Magento's Media Gallery Upload workflow

Published: 9/6/2023Modified: 11/6/2025

Also known as:GHSA-wqr6-wv6c-p8fxBIT-magento-2021-36036

Description

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 Magento's 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.

Affected packages (3)

Bitnami/magentofrom 0, < 2.3.7, >= 2.4.0, < 2.4.2
Packagist/magento/community-editionfrom 0, < 2.3.7-p1
Packagist/magento/project-community-editionfrom 0, <= 2.0.2

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	CRITICAL9.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References (3)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-36036
PATCHhttps://github.com/magento/magento2
WEBhttps://helpx.adobe.com/security/products/magento/apsb21-64.html