CVE-2021-36036: Magento Commerce Media Gallery Upload Improper Access Control Could Lead To Remote Code Execution

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-06 · updated 2026-06-17
Weakness: CWE-284

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 products

Adobe Magento Commerce: before 2.3.7; from 2.4.0 before 2.4.2; 2.3.7, 2.4.2, 2.4.2-p1 — fixed in 2.3.7, 2.4.2

How to fix

Upgrade to a fixed version: Adobe Magento Commerce 2.3.7, 2.4.2. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2021-36036 or the next vulnerability affects your stack