Is CVE-2025-49147 in the CISA KEV catalog?

No. CVE-2025-49147 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-49147?

CVE-2025-49147 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-49147?

CVE-2025-49147 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-49147?

Upgrade umbraco cms to 13.9.2 or later.

CVE & CISA-KEV Catalog

CVE-2025-49147

MEDIUM

5.3

CVSS v3

NVD

Description

Umbraco, a free and open source .NET content management system, has a vulnerability in versions 10.0.0 through 10.8.10 and 13.0.0 through 13.9.1. Via a request to an anonymously authenticated endpoint it's possible to retrieve information about the configured password requirements. The information available is limited but would perhaps give some additional detail useful for someone attempting to brute force derive a user's password. This information was not exposed in Umbraco 7 or 8, nor in 14 or higher versions. The vulnerability is patched in versions 10.8.11 and 13.9.2.

CWE-497

How to fix

Remediation Available

umbraco cmsNVD

Affected:>= 13.0.0, < 13.9.2Fixed in:13.9.2CVE-2025-49147derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Patch3

Related Vulnerabilities

Other CWE-497 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-31955	Medium	5.5	81%	KEV	Fix
CVE-2026-7864	Medium	6.9	17%	-	-
CVE-2025-44823	Critical	9.9	16%	-	Fix
CVE-2025-55131	High	7.1	3.5%	-	Fix
CVE-2026-34413	High	8.6	2.8%	-	-
CVE-2024-13999	Critical	9.8	1.8%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-22.