How severe is CVE-2025-24012?

CVE-2025-24012 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-24012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-24012?

CVE-2025-24012 affects Umbraco Umbraco Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-24012?

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

Does CVE-2025-24012 have an EU (EUVD) identifier?

Yes. CVE-2025-24012 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0204.

When was CVE-2025-24012 published?

CVE-2025-24012 was published on 2025-01-21 and last updated on 2026-06-17.

CVE-2025-24012

CVE-2025-24012 is a medium-severity vulnerability in Umbraco Umbraco Cms with a CVSS 3.x base score of 4.6. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-0204
Weakness: CWE-79
Affected product: Umbraco Umbraco Cms
Published: 2025-01-21
Last modified: 2026-06-17

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, authenticated users are able to exploit a cross-site scripting vulnerability when viewing certain localized backoffice components. Versions 14.3.2 and 15.1.2 contain a patch.

Frequently asked questions

What is CVE-2025-24012?: 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, authenticated users are able to exploit a cross-site scripting vulnerability when viewing certain localized backoffice components. Versions 14.3.2 and 15.1.2 contain a patch.
How severe is CVE-2025-24012?: CVE-2025-24012 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-24012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-24012?: CVE-2025-24012 affects Umbraco Umbraco Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-24012?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-24012 have an EU (EUVD) identifier?: Yes. CVE-2025-24012 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0204.
When was CVE-2025-24012 published?: CVE-2025-24012 was published on 2025-01-21 and last updated on 2026-06-17.

References

Affected products (1)

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

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