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

CVE-2025-49147 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2025-49147?

Within 30 days: Identify affected systems running versions 10.0.0 and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Umbraco CVE-2025-49147

Q: Which versions of Umbraco are affected by CVE-2025-49147?

Organizations using versions 10.0.0 should be aware of moderate risk from CVE-2025-49147 rated CVSS 5.3. Exploitation could compromise the security of affected deployments.. A patch is available.

EUVD-2025-19053 MEDIUM

Exposure of Sensitive System Information to an Unauthorized Control Sphere (CWE-497)

2025-06-24 security-advisories@github.com

GHSA-pgvc-6h2p-q4f6

Information Disclosure Umbraco Cms Umbraco

5.3

CVSS 3.1 · GitHub Advisory

View

Vulnerability Assessment

Weakness	CWE CWE-497 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V14 - Data Protection System info exposure prevention
Impact	CVSS 5.3. EPSS 0.1%. Vendor patch available.
Exploit ScenarioDerived	An attacker could send a specially crafted request to versions 10.0.0 to execute arbitrary code on the underlying server, potentially gaining full control of the system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

A remote code execution vulnerability in versions 10.0.0 (CVSS 5.3). Remediation should follow standard vulnerability management procedures. Vendor patch is available.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 22:36 CVSS 5.3

RemediationAI

Apply the vendor-supplied patch immediately.

Affected VersionsENISA

Umbraco-CMS 10.0.0, < 10.8.111

Umbraco-CMS 13.0.0, < 13.9.2

Affected Packages

nuget umbraco.cms fix: 10.8.11, 10.8.111, 13.9.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in nuget

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Vulnerability type: remote code execution. Affects versions 10.0.0.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

GitHub Advisory PRIMARY 5.3 MEDIUM

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Patch released

Mar 15, 2026 - 22:36 nvd

Patch available

CVE Published

Jun 24, 2025 - 18:15 nvd

MEDIUM 5.3

DescriptionGitHub Advisory

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.

Executive ViewAI

Why It Matters

Organizations using versions 10.0.0 should be aware of moderate risk from CVE-2025-49147 rated CVSS 5.3. Exploitation could compromise the security of affected deployments. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 83% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +26

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.