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CVE-2020-13670

Exposure of Resource to Wrong Sphere in Drupal Core

7.5 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

1.11%Up 0.2 points since Feb 12, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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.

Record
CVE-2020-13670
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-668
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2020-13670
Updated
2026-11-02
EUVDEUVD-2022-1104 No score

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.

Record
EUVD-2022-1104
Updated
2026-11-03
GitHub AdvisoriesGHSA-mmjr-5q74-p3m4 7.5

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.

Record
GHSA-mmjr-5q74-p3m4
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-668
Updated
2026-11-02
OSV 7.5

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.

Record
CVE-2020-13670
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVGHSA-mmjr-5q74-p3m4 7.5

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.

Record
GHSA-mmjr-5q74-p3m4
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-668
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13670 7.5

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.

Record
UBUNTU-CVE-2020-13670
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVBIT-drupal-2020-13670 No score

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.

Record
BIT-drupal-2020-13670
Updated
2026-11-02
OSVDRUPAL-CORE-2020-011 No score

A vulnerability exists in the File module which 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.

Record
DRUPAL-CORE-2020-011
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
drupal/core
Packagist
8.9.0 up to 8.9.6
8.9.6
drupal/core
Packagist
9.0.0 up to 9.0.6
9.0.6
drupal/core
Packagist
8.0.0 up to 8.8.10
8.8.10
drupal/drupal
Packagist
8.0.0 up to 8.8.10
8.8.10
drupal/drupal
Packagist
8.9.0 up to 8.9.6
8.9.6
drupal/drupal
Packagist
9.0.0 up to 9.0.6
9.0.6
drupal
Bitnami
8.8.0 up to 8.8.10, 8.9.0 up to 8.9.6, 9.0.0 up to 9.0.6
8.8.108.9.69.0.6
drupal/core
Packagist
8.0.0 up to 8.8.10, 8.9.0 up to 8.9.6, 9.0.0 up to 9.0.6, plus listed versions
8.0.18.0.28.0.38.0.48.0.5
Show 45 moreShow less
8.0.68.1.08.1.0-beta18.1.0-beta28.1.0-rc18.1.18.1.108.1.28.1.38.1.48.1.58.1.68.1.78.1.88.1.98.2.08.2.0-beta18.2.0-beta28.2.0-beta38.2.0-rc18.2.0-rc28.2.18.2.28.2.38.2.48.2.58.2.68.2.78.2.88.3.08.3.0-alpha18.3.0-beta18.3.0-rc18.3.0-rc28.3.18.3.28.3.38.3.48.3.58.3.68.3.78.3.88.3.98.4.08.4.0-alpha1
8.8.108.9.69.0.6
drupal/core
Packagist
8.0.0 up to 8.8.10, plus listed versions
8.0.18.0.28.0.38.0.48.0.5
Show 45 moreShow less
8.0.68.1.08.1.0-beta18.1.0-beta28.1.0-rc18.1.18.1.108.1.28.1.38.1.48.1.58.1.68.1.78.1.88.1.98.2.08.2.0-beta18.2.0-beta28.2.0-beta38.2.0-rc18.2.0-rc28.2.18.2.28.2.38.2.48.2.58.2.68.2.78.2.88.3.08.3.0-alpha18.3.0-beta18.3.0-rc18.3.0-rc28.3.18.3.28.3.38.3.48.3.58.3.68.3.78.3.88.3.98.4.08.4.0-alpha1
8.8.10
drupal/core
Packagist
8.9.0 up to 8.9.6, plus listed versions
8.9.18.9.28.9.38.9.48.9.5
8.9.6
Show 4 moreShow less
Affected packages
PackageAffectedFixed
drupal/core
Packagist
9.0.0 up to 9.0.6, plus listed versions
9.0.19.0.29.0.39.0.49.0.5
9.0.6
drupal/drupal
Packagist
8.0.0 up to 8.8.10, plus listed versions
8.0.18.0.28.0.38.0.48.0.5
Show 45 moreShow less
8.0.68.1.08.1.0-beta18.1.0-beta28.1.0-rc18.1.18.1.108.1.28.1.38.1.48.1.58.1.68.1.78.1.88.1.98.2.08.2.0-beta18.2.0-beta28.2.0-beta38.2.0-rc18.2.0-rc28.2.18.2.28.2.38.2.48.2.58.2.68.2.78.2.88.3.08.3.0-alpha18.3.0-beta18.3.0-rc18.3.0-rc28.3.18.3.28.3.38.3.48.3.58.3.68.3.78.3.88.3.98.4.08.4.0-alpha1
8.8.10
drupal/drupal
Packagist
8.9.0 up to 8.9.6, plus listed versions
8.9.18.9.28.9.38.9.48.9.5
8.9.6
drupal/drupal
Packagist
9.0.0 up to 9.0.6, plus listed versions
9.0.19.0.29.0.39.0.49.0.5
9.0.6

History

History
RecordedChangedSources
affected
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-13670 is a high vulnerability (CVSS 7.5) in Drupal Core, published September 16, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.11%, the 66th percentile. Fixed in drupal/core 8.9.6.

References

This page doesn't list everything

Left out here: 268 versions. The JSON record has them.

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