Vulnerability identifier: #VU65127

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24800

CWE-ID: CWE-362

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
October CMS
Web applications / CMS

Vendor: OctoberCMS

Description

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

The vulnerability exists due to a race condition when processing uploaded filenames passed via the fromData method. A remote attacker can upload and execute arbitrary files on the system.

The vulnerability affects installations of OctoberCMS with plugins that expose the October\Rain\Database\Attach\File::fromData as a public interface.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

October CMS: 2.2.0 - 2.2.14, 2.1.0 - 2.1.29, 2.0.0 - 2.0.29, 1.1.0 - 1.1.11, 1.0.319 - 1.0.475

---

External links
http://github.com/octobercms/october/security/advisories/GHSA-8v7h-cpc2-r8jp/

---

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.