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CVE-2020-9471 — Vulnerability in UmbracoCMS.Core — CVE Details

HIGH

Umbraco CMS Authenticated File Upload

Published May 24, 2022Updated February 16, 2024Source: osv

Summary

Umbraco Cloud 8.5.3 allows an authenticated file upload (and consequently Remote Code Execution) via the Install Packages functionality.

Advisory Timeline

  • First published May 24, 2022 (1602 days ago).
  • Last revised February 16, 2024 — 633 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
UmbracoCMS.Core
nuget
4.10.0, 4.10.0-beta, 4.10.0-rc, 4.10.1 (+234 more)Range-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-434
    Unrestricted File UploadMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2020-9471?
Umbraco CMS Authenticated File Upload This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2020-9471?
CVE-2020-9471 affects UmbracoCMS.Core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-9471 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-h68c-4jh3-cp9j

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