CVE-2015-8814: Umbraco.CMS Umbraco CMS Vulnerable To CSRF Vulnerability

HIGH
Advisory Identifier: GHSA-5f6p-4hxq-rjxm
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CVSS 8.8
CWE-352
Published
Advisory Summary

CVE-2015-8814 is a HIGH (CVSS 8.8) umbraco cms vulnerable to csrf vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Umbraco.CMS libraries in the NuGet ecosystem. The issue involves umbraco cms vulnerable to csrf. Remediation is available by upgrading affected packages to version 7.4.0.

CVE-2015-8814 at a Glance

CVE Identifier CVE-2015-8814
GHSA Identifier GHSA-5f6p-4hxq-rjxm
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Umbraco.CMS
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2015-8814

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

Umbraco.CMS fixed: 7.4.0 
Upgrade Umbraco.CMS to 7.4.0
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 Umbraco.CMS

How to Check if You Are Affected

To determine whether your application is affected by CVE-2015-8814, inspect your project dependencies for Umbraco.CMS:

inspect dependencies for Umbraco.CMS

Analyze the terminal output to locate any version of Umbraco.CMS in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.4.0), 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 Umbraco.CMS, 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 before 7.4.0 allows remote attackers to bypass anti-forgery security measures and conduct cross-site request forgery (CSRF) attacks as demonstrated by editing user account information in the `templates.asmx.cs` file.

CVE-2015-8814 Affected Umbraco.CMS Versions

1 component(s)
Fixed Versions:
7.4.0
Product / Package Ecosystem Affected Versions Fixed Version
Umbraco.CMS
nuget/Umbraco.CMS
NuGet
< 7.4.0
7.4.0

References

NVD — CVE-2015-8814 NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8814
Security Fix Commit FIX COMMIT
https://github.com/umbraco/Umbraco-CMS/commit/18c3345e47663a358a042652e697b988d6a380eb
web.archive.org/web/20230608152113/... WEB
https://web.archive.org/web/20230608152113/https://issues.umbraco.org/issue/U4-7459
Umbraco.CMS Security Information SECURITY
http://www.openwall.com/lists/oss-security/2016/02/16/10

Frequently Asked Questions

What is CVE-2015-8814?
CVE-2015-8814 is a security vulnerability in Umbraco.CMS involving Umbraco CMS vulnerable to CSRF under CWE-352: Cross-Site Request Forgery (CSRF).
Which Umbraco.CMS versions are affected?
Affected versions include releases prior to 7.4.0 across affected packages: Umbraco.CMS.
What version fixes CVE-2015-8814?
Upgrading to 7.4.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Umbraco.CMS affected?
Yes, Umbraco.CMS is affected in releases prior to 7.4.0. Upgrade your dependency to 7.4.0 or later.
What is the CVSS score of CVE-2015-8814?
CVE-2015-8814 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2015-8814?
CVE-2015-8814 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-2015-8814?
Run the dependency tree command: 'inspect dependencies for Umbraco.CMS'. 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-5f6p-4hxq-rjxm",
  "modified" : "2023-08-03T22:11:00Z",
  "published" : "2022-05-17T02:56:23Z",
  "aliases" : [ "CVE-2015-8814" ],
  "summary" : "Umbraco CMS vulnerable to CSRF",
  "details" : "Umbraco before 7.4.0 allows remote attackers to bypass anti-forgery security measures and conduct cross-site request forgery (CSRF) attacks as demonstrated by editing user account information in the `templates.asmx.cs` file.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Umbraco.CMS"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "7.4.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2015-8814"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/umbraco/Umbraco-CMS/commit/18c3345e47663a358a042652e697b988d6a380eb"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20230608152113/https://issues.umbraco.org/issue/U4-7459"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2016/02/16/10"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-03T22:11:00Z",
    "nvd_published_at" : "2017-03-03T16:59:00Z"
  }
}