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Vulnerability details: VCID-ssyn-dxp9-3kdq
Vulnerability ID VCID-ssyn-dxp9-3kdq
Aliases CVE-2020-13663
GHSA-m648-hpf8-qcjw
Summary Drupal Core Cross-Site Request Forgery (CSRF) vulnerability 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-352 Cross-Site Request Forgery (CSRF)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-13663
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-m648-hpf8-qcjw
cvssv3.1 8.8 https://github.com/drupal/core
generic_textual HIGH https://github.com/drupal/core
cvssv3.1 8.8 https://github.com/drupal/core/commit/5f3c4d80fd77df0cfa87722b446db54040d55693
generic_textual HIGH https://github.com/drupal/core/commit/5f3c4d80fd77df0cfa87722b446db54040d55693
cvssv3.1 8.8 https://github.com/drupal/core/commit/bc3235dcb5570bbda62ef9547e7604ee060b72c6
generic_textual HIGH https://github.com/drupal/core/commit/bc3235dcb5570bbda62ef9547e7604ee060b72c6
cvssv3.1 8.8 https://github.com/drupal/core/commit/faf3243c4ce03bbaab386af2b272b363fd0dfddb
generic_textual HIGH https://github.com/drupal/core/commit/faf3243c4ce03bbaab386af2b272b363fd0dfddb
cvssv3.1 8.8 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13663.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13663.yaml
cvssv3.1 8.8 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13663.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13663.yaml
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2020-13663
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-13663
cvssv3.1 8.8 https://www.drupal.org/sa-core-2020-004
generic_textual HIGH https://www.drupal.org/sa-core-2020-004
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-13663
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13663
https://github.com/drupal/core
https://github.com/drupal/core/commit/5f3c4d80fd77df0cfa87722b446db54040d55693
https://github.com/drupal/core/commit/bc3235dcb5570bbda62ef9547e7604ee060b72c6
https://github.com/drupal/core/commit/faf3243c4ce03bbaab386af2b272b363fd0dfddb
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13663.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13663.yaml
https://nvd.nist.gov/vuln/detail/CVE-2020-13663
https://www.drupal.org/sa-core-2020-004
GHSA-m648-hpf8-qcjw https://github.com/advisories/GHSA-m648-hpf8-qcjw
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/drupal/core
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/drupal/core/commit/5f3c4d80fd77df0cfa87722b446db54040d55693
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/drupal/core/commit/bc3235dcb5570bbda62ef9547e7604ee060b72c6
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/drupal/core/commit/faf3243c4ce03bbaab386af2b272b363fd0dfddb
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13663.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13663.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-13663
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.drupal.org/sa-core-2020-004
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.4453
EPSS Score 0.0022
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:09:30.953487+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-m648-hpf8-qcjw/GHSA-m648-hpf8-qcjw.json 38.0.0