CVE-2023-49274

Name: CVE-2023-49274
Creator: NVD / NIST
Published: 2023-12-12T20:15:07.993+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2023-49274 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a user enumeration attack is possible when SMTP is not set up correctly, but reset password is enabled. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a user enumeration attack is possible when SMTP is not set up correctly, but reset password is enabled. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.46%

36.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Umbraco	Umbraco Cms	>= 8.0.0, < 8.18.10
Umbraco	Umbraco Cms	>= 10.0.0, < 10.8.1
Umbraco	Umbraco Cms	>= 12.0.0, < 12.3.4

References

https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-8qp8-9rpw-j46cVendor Advisory
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-8qp8-9rpw-j46cVendor Advisory

Timeline

Published: Dec 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-49274?

How severe is CVE-2023-49274?

CVE-2023-49274 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2023-49274?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-49274?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST