CVE-2023-49274: low-severity vulnerability in Umbraco-CMS
Umbraco CMS SMTP misconfiguration exposes potential registered user email
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.7epss 0.5%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
umbraco · Umbraco-CMSRelated CVEs — Umbraco-CMS
In the same product, most dangerous first.
CVE-2025-24011MEDIUMUmbraco CMS Vulnerable to User Enumeration Feasible Based On Management API Timing and Response CodesEPSS 1.6%CVE-2023-37267HIGHUmbraco allows possible Admin-level access to backoffice without Auth under rare conditionsEPSS 0.7%CVE-2026-69197HIGHUmbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansionEPSS 0.7%CVE-2025-32017HIGHUmbraco has a Management API Vulnerability to Path Traversal With Authenticated UsersEPSS 0.6%CVE-2023-49089HIGHUmbraco CMS possible path traversal when creating packages from backofficeEPSS 0.6%CVE-2023-49278MEDIUMUmbraco CMS brute force exploit can be used to collect valid usernamesEPSS 0.5%