Remote code execution in Craft CMS

1) Input validation error

EUVDB-ID: #VU77914

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send  specially crafted input to the application and execute arbitrary code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Craft CMS: 3.8.0 - 4.4.14

External links

http://github.com/craftcms/cms/releases/tag/3.8.15
http://github.com/craftcms/cms/releases/tag/4.4.15

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?

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