CVE-2021-36036

Name: CVE-2021-36036
Creator: NVD / NIST
Published: 2023-09-06T14:15:09.11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 2.05%

Last modified Jun 17, 2026

CVE-2021-36036 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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. EPSS estimates a 2.05% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.05%

78.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Magento	Magento	< 2.3.7
Magento	Magento	>= 2.4.0, < 2.4.2
Magento	Magento	2.3.7
Magento	Magento	2.4.2

References

https://helpx.adobe.com/security/products/magento/apsb21-64.htmlVendor Advisory
https://helpx.adobe.com/security/products/magento/apsb21-64.htmlVendor Advisory

Timeline

Published: Sep 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36036?

How severe is CVE-2021-36036?

CVE-2021-36036 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.05% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36036?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-36036?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST