How severe is CVE-2025-27601?

CVE-2025-27601 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-27601 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27601?

CVE-2025-27601 affects Umbraco Umbraco Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-27601?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-27601 have an EU (EUVD) identifier?

Yes. CVE-2025-27601 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7794.

When was CVE-2025-27601 published?

CVE-2025-27601 was published on 2025-03-11 and last updated on 2026-06-17.

CVE-2025-27601

CVE-2025-27601 is a medium-severity vulnerability in Umbraco Umbraco Cms with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7794
Weakness: CWE-285
Affected product: Umbraco Umbraco Cms
Published: 2025-03-11
Last modified: 2026-06-17

Description

Umbraco is a free and open source .NET content management system. An improper API access control issue has been identified Umbraco's API management package prior to versions 15.2.3 and 14.3.3, allowing low-privilege, authenticated users to create and update data type information that should be restricted to users with access to the settings section. The issue is patched in versions 15.2.3 and 14.3.3. No known workarounds are available.

Frequently asked questions

What is CVE-2025-27601?: Umbraco is a free and open source .NET content management system. An improper API access control issue has been identified Umbraco's API management package prior to versions 15.2.3 and 14.3.3, allowing low-privilege, authenticated users to create and update data type information that should be restricted to users with access to the settings section. The issue is patched in versions 15.2.3 and 14.3.3. No known workarounds are available.
How severe is CVE-2025-27601?: CVE-2025-27601 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-27601 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27601?: CVE-2025-27601 affects Umbraco Umbraco Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-27601?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-27601 have an EU (EUVD) identifier?: Yes. CVE-2025-27601 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7794.
When was CVE-2025-27601 published?: CVE-2025-27601 was published on 2025-03-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*

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