Vulnerability identifier: #VU72701

Vulnerability risk: Critical

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-36537

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
ZK Framework
Web applications / CMS

Vendor: Potix Corporation

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input in the AuUploader component. A remote non-authenticated attacker can send a specially crafted HTTP POST request to the "/zkau/upload" URL and execute arbitrary code on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ZK Framework: 8.0.0 - 9.6.1

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External links
http://tracker.zkoss.org/browse/ZK-5150
http://archive.is/r3eGg

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.