4.9

CVE-2025-66625

Umbraco Vulnerable to Improper File Access and Credential Exposure through Dictionary Import Functionality

Umbraco is an ASP.NET CMS. Due to unsafe handling and deletion of temporary files in versions 10.0.0 through 13.12.0, during the dictionary upload process an attacker with access to the backoffice can trigger predictable requests to temporary file paths. The application’s error responses (HTTP 500 when a file exists, 404 when it does not) allow the attacker to enumerate the existence of arbitrary files on the server’s filesystem. This vulnerability does not allow reading or writing file contents. In certain configurations, incomplete clean-up of temporary upload files may additionally expose the NTLM hash of the Windows account running the Umbraco application. This issue is fixed in version 13.12.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Umbraco ≫ Umbraco Cms Version >= 10.0.0 < 13.12.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.215
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 4.9 1.2 3.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

CWE-377 Insecure Temporary File

Creating and using insecure temporary files can leave application and system data vulnerable to attack.

CWE-552 Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

https://github.com/umbraco/Umbraco-CMS/commit/7505efd433189037f46547932d4a8b603fd4a615
Patch
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-hfv2-pf68-m33x
Patch
Third Party Advisory