CVE-2020-7210: UmbracoCMS.Core Umbraco CMS Vulnerable To CSRF Vulnerability

MODERATE
Advisory Identifier: GHSA-gqqf-8cx6-9r7h
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CVSS 4.3
CWE-352
Published
Advisory Summary

CVE-2020-7210 is a MODERATE (CVSS 4.3) umbraco cms vulnerable to csrf vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting UmbracoCMS.Core libraries in the NuGet ecosystem. The issue involves umbraco cms vulnerable to csrf. Remediation is available by upgrading affected packages to version 8.5.0.

CVE-2020-7210 at a Glance

CVE Identifier CVE-2020-7210
GHSA Identifier GHSA-gqqf-8cx6-9r7h
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product UmbracoCMS.Core
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2020-7210

To remediate this vulnerability, upgrade all affected UmbracoCMS.Core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

UmbracoCMS.Core fixed: 8.5.0 
Upgrade UmbracoCMS.Core to 8.5.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for UmbracoCMS.Core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-7210, inspect your project dependencies for UmbracoCMS.Core:

inspect dependencies for UmbracoCMS.Core

Analyze the terminal output to locate any version of UmbracoCMS.Core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.5.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-352: Cross-Site Request Forgery (CSRF), where the web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. In UmbracoCMS.Core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Umbraco CMS 8.2.2 allows CSRF to enable/disable or delete user accounts.

CVE-2020-7210 Affected UmbracoCMS.Core Versions

1 component(s)
Fixed Versions:
8.5.0
Product / Package Ecosystem Affected Versions Fixed Version
UmbracoCMS.Core
nuget/UmbracoCMS.Core
NuGet
< 8.5.0
8.5.0

References

NVD — CVE-2020-7210 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7210
UmbracoCMS.Core Source Repository REPOSITORY
https://github.com/umbraco/Umbraco-CMS
sec-consult.com/en/blog/advisories/... WEB
https://sec-consult.com/en/blog/advisories/cross-site-request-forgery-csrf-in-umbraco-cms
seclists.org/bugtraq/2020/jan/35 WEB
https://seclists.org/bugtraq/2020/Jan/35
UmbracoCMS.Core Security Information SECURITY
http://packetstormsecurity.com/files/156062/Umbraco-CMS-8.2.2-Cross-Site-Request-Forgery.html
seclists.org/fulldisclosure/2020... WEB
http://seclists.org/fulldisclosure/2020/Jan/33

Frequently Asked Questions

What is CVE-2020-7210?
CVE-2020-7210 is a security vulnerability in UmbracoCMS.Core involving Umbraco CMS vulnerable to CSRF under CWE-352: Cross-Site Request Forgery (CSRF).
Which UmbracoCMS.Core versions are affected?
Affected versions include releases prior to 8.5.0 across affected packages: UmbracoCMS.Core.
What version fixes CVE-2020-7210?
Upgrading to 8.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is UmbracoCMS.Core affected?
Yes, UmbracoCMS.Core is affected in releases prior to 8.5.0. Upgrade your dependency to 8.5.0 or later.
What is the CVSS score of CVE-2020-7210?
CVE-2020-7210 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2020-7210?
CVE-2020-7210 is classified under CWE-352: Cross-Site Request Forgery (CSRF) (The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.).
How can I check NuGet dependencies for CVE-2020-7210?
Run the dependency tree command: 'inspect dependencies for UmbracoCMS.Core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gqqf-8cx6-9r7h",
  "modified" : "2023-07-13T17:15:15Z",
  "published" : "2022-05-24T17:07:13Z",
  "aliases" : [ "CVE-2020-7210" ],
  "summary" : "Umbraco CMS vulnerable to CSRF",
  "details" : "Umbraco CMS 8.2.2 allows CSRF to enable/disable or delete user accounts.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "UmbracoCMS.Core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-7210"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/umbraco/Umbraco-CMS"
  }, {
    "type" : "WEB",
    "url" : "https://sec-consult.com/en/blog/advisories/cross-site-request-forgery-csrf-in-umbraco-cms"
  }, {
    "type" : "WEB",
    "url" : "https://seclists.org/bugtraq/2020/Jan/35"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/156062/Umbraco-CMS-8.2.2-Cross-Site-Request-Forgery.html"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/fulldisclosure/2020/Jan/33"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-13T17:15:15Z",
    "nvd_published_at" : "2020-01-23T13:15:00Z"
  }
}