GHSA-mmjr-5q74-p3m4

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GHSA-mmjr-5q74-p3m4

Summary: Exposure of Resource to Wrong Sphere in Drupal Core

Details: Information Disclosure vulnerability in file module of Drupal Core allows an attacker to gain access to the file metadata of a permanent private file that they do not have access to by guessing the ID of the file. 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.

References: https://nvd.nist.gov/vuln/detail/CVE-2020-13670, https://github.com/drupal/core/commit/f93a37b713b59f8d24e826bc74378099853eef3d, https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13670.yaml, https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13670.yaml, https://github.com/drupal/core, https://www.drupal.org/sa-core-2020-011