CVE-2017-6921
Drupal file REST resource does not properly validate
5.9
MEDIUM
CVSS 3.1
EPSS 0.44%
Description
In Drupal 8 prior to 8.3.4; The file REST resource does not properly validate some fields when manipulating files. A site is only affected by this if the site has the RESTful Web Services (rest) module enabled, the file REST resource is enabled and allows PATCH requests, and an attacker can get or register a user account on the site with permissions to upload files and to modify the file resource.
How to fix CVE-2017-6921
To remediate CVE-2017-6921, upgrade the affected package to a fixed version below.
- —upgrade to 8.3.4 or later
- —upgrade to 8.3.4 or later
Is CVE-2017-6921 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 8.0, < 8.3.4
- >= 8.0, < 8.3.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |