CVE-2017-6921: File REST resource does not properly validate

January 15, 2019 (updated October 9, 2019)

The file REST resource does not properly validate some fields when manipulating files. 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.

References

www.drupal.org/SA-CORE-2017-003

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