Vulnerability identifier: #VU50554

Vulnerability risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21019

CWE-ID: CWE-91

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Commerce (formerly Magento Commerce)
Web applications / E-Commerce systems
Magento Open Source
Web applications / E-Commerce systems

Vendor: Magento, Inc

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation when processing XML data. A remote authenticated administrator can pass specially crafted XML data to the application and perform arbitrary actions on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Commerce (formerly Magento Commerce): 2.4.0 - 2.4.1, 2.3.0 - 2.3.6, 2.2.0 - 2.2.11, 2.0.0 - 2.0.18, 2.1.0 - 2.1.18

Magento Open Source: 2.3.0 - 2.3.6, 2.4.0 - 2.4.1, 2.2.0 - 2.2.11, 2.1.0 - 2.1.18, 2.0.0 - 2.0.18

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External links
http://helpx.adobe.com/security/products/magento/apsb21-08.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.