Medium severity · published May 6, 2025
CVE-2025-46736
Umbraco is a free and open source .NET content management system
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
Umbraco is a free and open source .NET content management system. Prior to versions 10.8.10 and 13.8.1, based on an analysis of the timing of post login API responses, it's possible to determine whether an account exists. The issue is patched in versions 10.8.10 and 13.8.1. No known workarounds are available.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
Umbraco Cms · Umbraco
before 10.8.10; 10.9.0 before 13.8.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-46736
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-46736
Patch
https://github.com/umbraco/Umbraco-CMS/commit/14fbd20665b453cbf094ccf4575b79a9fba07e03
Patch
https://github.com/umbraco/Umbraco-CMS/commit/34709be6cce9752dfa767dffbf551305f48839bc
Vendor Advisory
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-4g8m-5mj5-c8xg
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