// For flags

CVE-2023-49278

Umbraco CMS brute force exploit can be used to collect valid usernames

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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 brute force exploit can be used to collect valid usernames. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue.

Umbraco es un sistema de gestión de contenidos (CMS) ASP.NET. A partir de la versión 8.0.0 y anteriores a las versiones 8.18.10, 10.8.1 y 12.3.4, se puede utilizar un exploit de fuerza bruta para recopilar nombres de usuario válidos. Las versiones 8.18.10, 10.8.1 y 12.3.4 contienen un parche para este problema.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-11-24 CVE Reserved
  • 2023-12-12 CVE Published
  • 2024-10-08 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-307: Improper Restriction of Excessive Authentication Attempts
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Umbraco
Search vendor "Umbraco"
Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
>= 8.0.0 < 8.18.10
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 8.0.0 < 8.18.10"
-
Affected
Umbraco
Search vendor "Umbraco"
Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
>= 10.0.0 < 10.8.1
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 10.0.0 < 10.8.1"
-
Affected
Umbraco
Search vendor "Umbraco"
Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
>= 12.0.0 < 12.3.4
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 12.0.0 < 12.3.4"
-
Affected