CVE-2025-54425

MEDIUM EPSS 22.3%
Published Jul 30, 202511mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Jul 30, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

Umbraco is an ASP.NET CMS. In versions 13.0.0 through 13.9.2, 15.0.0 through 15.4.1 and 16.0.0 through 16.1.0, the content delivery API can be restricted from public access where an API key must be provided in a header to authorize the request. It's also possible to configure output caching, such that the delivery API outputs will be cached for a period of time, improving performance. There's an issue when these two things are used together, where caching doesn't vary by the header that contains the API key. As such, it's possible for a user without a valid API key to retrieve a response for a given path and query if it has recently been requested and cached by request with a valid key. This is fixed in versions 13.9.3, 15.4.4 and 16.1.1.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
22.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure

Affected Products 3

VendorProductVersionRange
umbracoumbraco_cms*≥13.0.0  –  <13.9.3
umbracoumbraco_cms*≥15.0.0  –  <15.4.4
umbracoumbraco_cms*≥16.0.0  –  <16.1.1

References 5

  • docs.umbraco.com https://docs.umbraco.com/umbraco-cms/reference/content-delivery-api
    Product
  • github.com https://github.com/umbraco/Umbraco-CMS/commit/7e82c258eebaa595eadc9b000461e27d02bc030e
    Patch
  • github.com https://github.com/umbraco/Umbraco-CMS/commit/9f37db18d11c8ba4e3ecdeb35291af30ebee7cd0
    Patch
  • github.com https://github.com/umbraco/Umbraco-CMS/commit/da43086017e1e318f6b5373391d78421efebce3a
    Patch
  • github.com https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-75vq-qvhr-7ffr
    Third Party Advisory

Remediation

  • github.com https://github.com/umbraco/Umbraco-CMS/commit/7e82c258eebaa595eadc9b000461e27d02bc030e
    Patch
  • github.com https://github.com/umbraco/Umbraco-CMS/commit/9f37db18d11c8ba4e3ecdeb35291af30ebee7cd0
    Patch
  • github.com https://github.com/umbraco/Umbraco-CMS/commit/da43086017e1e318f6b5373391d78421efebce3a
    Patch