CVE-2025-24011

Umbraco CMS Vulnerable to User Enumeration Feasible Based On Management API Timing and Response Codes

Description

Umbraco is a free and open source .NET content management system. Starting in version 14.0.0 and prior to versions 14.3.2 and 15.1.2, it's possible to determine whether an account exists based on an analysis of response codes and timing of Umbraco management API responses. Versions 14.3.2 and 15.1.2 contain a patch. No known workarounds are available.

Categories

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 14.10% Top 10%
Vendor Advisory github.com
Affected: umbraco Umbraco-CMS
Published at:
Updated at:

References

Link Tags
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-hmg4-wwm5-p999 vendor advisory
https://github.com/umbraco/Umbraco-CMS/commit/559c6c9f312df1d6eb1bde82c4b81c0896da6382 patch
https://github.com/umbraco/Umbraco-CMS/commit/839b6816f2ae3e5f54459a0f09dad6b17e2d1e07 patch

Frequently Asked Questions

What is the severity of CVE-2025-24011?
CVE-2025-24011 has been scored as a medium severity vulnerability.
How to fix CVE-2025-24011?
To fix CVE-2025-24011, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-24011 being actively exploited in the wild?
It is possible that CVE-2025-24011 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~14% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-24011?
CVE-2025-24011 affects umbraco Umbraco-CMS.
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