Vulnerability identifier: #VU84400

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-49274

CWE-ID: CWE-209

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Umbraco CMS
Web applications / CMS

Vendor: Umbraco

Description

The vulnerability allows a remote attacker to enumerate registered users.

The vulnerability exists due to incorrect implementation of password reset feature, when SMTP is not setup correctly. A remote attacker can enumerate registered users.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Umbraco CMS: 10.0.0 - 10.8.0, 12.0.0 - 12.3.3, 11.0.0 - 11.5.0, 8.0.0 - 8.18.9, 9.0.0 - 9.5.4

---

External links
http://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-8qp8-9rpw-j46c

---

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.