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Vulnerability details: VCID-qbr8-t3et-4ud5
Vulnerability ID VCID-qbr8-t3et-4ud5
Aliases CVE-2020-13670
GHSA-mmjr-5q74-p3m4
Summary Exposure of Resource to Wrong Sphere in Drupal Core Information Disclosure vulnerability in file module of Drupal Core allows an attacker to gain access to the file metadata of a permanent private file that they do not have access to by guessing the ID of the file. This issue affects: Drupal Core 8.8.x versions prior to 8.8.10; 8.9.x versions prior to 8.9.6; 9.0.x versions prior to 9.0.6.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-668 Exposure of Resource to Wrong Sphere
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 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
epss 0.00322 https://api.first.org/data/v1/epss?cve=CVE-2020-13670
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-mmjr-5q74-p3m4
cvssv3.1 7.5 https://github.com/drupal/core
generic_textual HIGH https://github.com/drupal/core
cvssv3.1 7.5 https://github.com/drupal/core/commit/f93a37b713b59f8d24e826bc74378099853eef3d
generic_textual HIGH https://github.com/drupal/core/commit/f93a37b713b59f8d24e826bc74378099853eef3d
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13670.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13670.yaml
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13670.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13670.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-13670
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-13670
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-13670
cvssv3.1 7.5 https://www.drupal.org/sa-core-2020-011
generic_textual HIGH https://www.drupal.org/sa-core-2020-011
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-13670
https://github.com/drupal/core
https://github.com/drupal/core/commit/f93a37b713b59f8d24e826bc74378099853eef3d
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13670.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13670.yaml
https://nvd.nist.gov/vuln/detail/CVE-2020-13670
https://www.drupal.org/sa-core-2020-011
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
GHSA-mmjr-5q74-p3m4 https://github.com/advisories/GHSA-mmjr-5q74-p3m4
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 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:N/S:U/C:H/I:N/A:N Found at https://github.com/drupal/core/commit/f93a37b713b59f8d24e826bc74378099853eef3d
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:N/S:U/C:H/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13670.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:N/S:U/C:H/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13670.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: AV:N/AC:L/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-13670
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-13670
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:N/S:U/C:H/I:N/A:N Found at https://www.drupal.org/sa-core-2020-011
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 0.54714
EPSS Score 0.00322
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:02:16.021013+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-mmjr-5q74-p3m4/GHSA-mmjr-5q74-p3m4.json 37.0.0