High severity · published Sep 1, 2021
CVE-2021-36040
Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an improper input validation vulnerability
7.2
CVSS
2.9%
EPSS
No
On KEV
Description
Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an improper input validation vulnerability. An attacker with admin privileges can upload a specially crafted file to bypass file extension restrictions and could lead to remote code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.9% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Commerce · Adobe
2.3.0 through 2.3.7; 2.4.0 through 2.4.2; 2.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36040
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36040
Patch
https://helpx.adobe.com/security/products/magento/apsb21-64.html
More from Commerce
10.0
CVE-2026-75650
Adobe Commerce | Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)
9.8
CVE-2024-34102
XXE can expose crypt key and other secrets granting full admin access
9.8
CVE-2022-24086
Adobe Commerce checkout improper input validation leads to remote code execution
9.3
CVE-2026-48356
Adobe Commerce | Unrestricted Upload of File with Dangerous Type (CWE-434)
9.1
CVE-2026-71362
Adobe Commerce | Incorrect Authorization (CWE-863)