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Drupal core access bypass vulnerability

High severity GitHub Reviewed Published Feb 12, 2022 to the GitHub Advisory Database • Updated Oct 4, 2023

Package

composer drupal/core (Composer)

Affected versions

>= 8.0.0, < 8.9.19
>= 9.1.0, < 9.1.13
>= 9.2.0, < 9.2.6

Patched versions

8.9.19
9.1.13
9.2.6

Description

Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected.

References

Published by the National Vulnerability Database Feb 11, 2022
Published to the GitHub Advisory Database Feb 12, 2022
Last updated Oct 4, 2023
Reviewed Oct 4, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.130%
(49th percentile)

Weaknesses

CVE ID

CVE-2020-13677

GHSA ID

GHSA-3xr3-phjp-g6p2

Source code

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