Skip to content

Drupal editor module incorrectly checks access to inline private files

High severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated May 3, 2024

Package

composer drupal/core (Composer)

Affected versions

>= 8.2.0, < 8.2.7

Patched versions

8.2.7
composer drupal/drupal (Composer)
>= 8.2.0, < 8.2.7
8.2.7

Description

When adding a private file via the editor in Drupal 8.2.x before 8.2.7, the editor will not correctly check access for the file being attached, resulting in an access bypass.

References

Published by the National Vulnerability Database Mar 16, 2017
Published to the GitHub Advisory Database May 13, 2022
Reviewed Apr 23, 2024
Last updated May 3, 2024

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
None
Integrity
High
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.251%
(64th percentile)

Weaknesses

CVE ID

CVE-2017-6377

GHSA ID

GHSA-w7qx-vwr9-2j3r

Source code

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.