CVE-2020-13670
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.
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
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 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV: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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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
| Package | Affected | Fixed |
|---|---|---|
drupal/corePackagist |
8.9.0 up to 8.9.6 | 8.9.6 |
drupal/corePackagist |
9.0.0 up to 9.0.6 | 9.0.6 |
drupal/corePackagist |
8.0.0 up to 8.8.10 | 8.8.10 |
drupal/drupalPackagist |
8.0.0 up to 8.8.10 | 8.8.10 |
drupal/drupalPackagist |
8.9.0 up to 8.9.6 | 8.9.6 |
drupal/drupalPackagist |
9.0.0 up to 9.0.6 | 9.0.6 |
drupalBitnami |
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/corePackagist |
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 less8.0.68.1.08.1.0-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/corePackagist |
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 less8.0.68.1.08.1.0-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/corePackagist |
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
| Package | Affected | Fixed |
|---|---|---|
drupal/corePackagist |
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/drupalPackagist |
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 less8.0.68.1.08.1.0-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/drupalPackagist |
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/drupalPackagist |
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
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases, products | EUVD | |
| first indexed | CVE 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
drupal.org/sa-core-2020-011
nvd.nist.gov/vuln/detail/CVE-2020-13670
github.com/drupal/core/commit/f93a37b713b59f8d24e826bc74378099853eef3d
github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13670.yaml
github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13670.yaml
github.com/advisories/GHSA-mmjr-5q74-p3m4
github.com/drupal/core
ubuntu.com/security/CVE-2020-13670
cve.org/CVERecord?id=CVE-2020-13670
Left out here: 268 versions. The JSON record has them.