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CVE-2020-13668

Access bypass in Drupal Core 8/9

6.1 MediumFix available

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.79%Down 0.1 points since Feb 12, 2022
90%50%10%1%

What each source reports

NVD Score used 6.1

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-2020-13668
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

Access bypass in Drupal Core 8/9

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-2020-13668
Updated
2026-11-02
EUVDEUVD-2022-1096 No score

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-2022-1096
Updated
2026-11-03
GitHub AdvisoriesGHSA-m6q5-wv4x-fv6h 6.1

Cross-site Scripting in Drupal Core

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-m6q5-wv4x-fv6h
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 6.1

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-2020-13668
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVGHSA-m6q5-wv4x-fv6h 6.1

Cross-site Scripting in Drupal Core

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-m6q5-wv4x-fv6h
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13668 6.1

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-2020-13668
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVBIT-drupal-2020-13668 No score

Access bypass in Drupal Core 8/9

Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. 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-2020-13668
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
drupal/core
Packagist
 8.0.0 up to 8.8.10
8.8.10
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/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, 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
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-2020-13668 is a medium vulnerability (CVSS 6.1) in Drupal Core, published February 11, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. Fixed in drupal/core 8.8.10.

References

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