CVE-2020-13663: Drupal/core Drupal Core Cross-Site Request Forgery Vulnerability

HIGH
Advisory Identifier: GHSA-m648-hpf8-qcjw
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CVSS 8.8
CWE-352
Published
Advisory Summary

CVE-2020-13663 is a HIGH (CVSS 8.8) drupal core cross-site request forgery vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Drupal/core libraries in the Packagist ecosystem. The issue involves drupal core cross-site request forgery (csrf) vulnerability. Remediation is available by upgrading affected packages to version 8.9.1, 9.0.1, 7.72, 8.8.8.

CVE-2020-13663 at a Glance

CVE Identifier CVE-2020-13663
GHSA Identifier GHSA-m648-hpf8-qcjw
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Drupal/core
Package Ecosystem Packagist
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:3.1/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-2020-13663

To remediate this vulnerability, upgrade all affected Drupal/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.

drupal/core fixed: 8.9.1 
Upgrade drupal/core to 8.9.1
drupal/core fixed: 9.0.1 
Upgrade drupal/core to 9.0.1
drupal/core fixed: 7.72 
Upgrade drupal/core to 7.72
drupal/core fixed: 8.8.8 
Upgrade drupal/core to 8.8.8
drupal/drupal fixed: 7.72 
Upgrade drupal/drupal to 7.72
drupal/drupal fixed: 8.8.8 
Upgrade drupal/drupal to 8.8.8
drupal/drupal fixed: 8.9.1 
Upgrade drupal/drupal to 8.9.1
drupal/drupal fixed: 9.0.1 
Upgrade drupal/drupal to 9.0.1
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 drupal/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-13663, inspect your project dependencies for Drupal/core:

inspect dependencies for drupal/core

Analyze the terminal output to locate any version of Drupal/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.9.1), 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 Drupal/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

Cross Site Request Forgery vulnerability in Drupal Core Form API does not properly handle certain form input from cross-site requests, which can lead to other vulnerabilities.

CVE-2020-13663 Affected Drupal/core Versions

8 component(s)
Fixed Versions:
8.9.19.0.17.728.8.8
Product / Package Ecosystem Affected Versions Fixed Version
drupal/core
 Packagist
≥ 8.9.0
< 8.9.1
8.9.1
drupal/core
 Packagist
≥ 9.0.0
< 9.0.1
9.0.1
drupal/core
 Packagist
≥ 7.0.0
< 7.72
7.72
drupal/core
 Packagist
≥ 8.0.0
< 8.8.8
8.8.8
drupal/drupal
 Packagist
≥ 7.0.0
< 7.72
7.72
drupal/drupal
 Packagist
≥ 8.0.0
< 8.8.8
8.8.8
drupal/drupal
 Packagist
≥ 8.9.0
< 8.9.1
8.9.1
drupal/drupal
 Packagist
≥ 9.0.0
< 9.0.1
9.0.1

References

NVD — CVE-2020-13663 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-13663
Security Fix Commit FIX COMMIT
https://github.com/drupal/core/commit/5f3c4d80fd77df0cfa87722b446db54040d55693
Security Fix Commit FIX COMMIT
https://github.com/drupal/core/commit/bc3235dcb5570bbda62ef9547e7604ee060b72c6
Security Fix Commit FIX COMMIT
https://github.com/drupal/core/commit/faf3243c4ce03bbaab386af2b272b363fd0dfddb
Drupal/core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13663.yaml
Drupal/core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13663.yaml
Drupal/core Source Repository REPOSITORY
https://github.com/drupal/core
www.drupal.org/sa-core-2020-004 WEB
https://www.drupal.org/sa-core-2020-004

Frequently Asked Questions

What is CVE-2020-13663?
CVE-2020-13663 is a security vulnerability in Drupal/core involving Drupal Core Cross-Site Request Forgery (CSRF) vulnerability under CWE-352: Cross-Site Request Forgery (CSRF).
Which Drupal/core versions are affected?
Affected versions include releases prior to 8.9.1, 9.0.1, 7.72, 8.8.8 across affected packages: drupal/core, drupal/drupal.
What version fixes CVE-2020-13663?
Upgrading to 8.9.1, 9.0.1, 7.72, 8.8.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal/core affected?
Yes, drupal/core is affected in releases prior to 8.9.1, 9.0.1, 7.72, 8.8.8. Upgrade your dependency to 8.9.1, 9.0.1, 7.72, 8.8.8 or later.
Is drupal/drupal affected?
Yes, drupal/drupal is affected in releases prior to 7.72, 8.8.8, 8.9.1, 9.0.1. Upgrade your dependency to 7.72, 8.8.8, 8.9.1, 9.0.1 or later.
What is the CVSS score of CVE-2020-13663?
CVE-2020-13663 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-13663?
CVE-2020-13663 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 Packagist dependencies for CVE-2020-13663?
Run the dependency tree command: 'inspect dependencies for drupal/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-m648-hpf8-qcjw",
  "modified" : "2024-02-06T13:09:44Z",
  "published" : "2022-05-24T19:05:06Z",
  "aliases" : [ "CVE-2020-13663" ],
  "summary" : "Drupal Core Cross-Site Request Forgery (CSRF) vulnerability",
  "details" : "Cross Site Request Forgery vulnerability in Drupal Core Form API does not properly handle certain form input from cross-site requests, which can lead to other vulnerabilities.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.9.0"
      }, {
        "fixed" : "8.9.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.0.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.72"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.8.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.72"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.8.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.9.0"
      }, {
        "fixed" : "8.9.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-13663"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/drupal/core/commit/5f3c4d80fd77df0cfa87722b446db54040d55693"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/drupal/core/commit/bc3235dcb5570bbda62ef9547e7604ee060b72c6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/drupal/core/commit/faf3243c4ce03bbaab386af2b272b363fd0dfddb"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13663.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13663.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/drupal/core"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-core-2020-004"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-12-20T21:03:22Z",
    "nvd_published_at" : "2021-06-11T16:15:00Z"
  }
}