CVE-2020-13670 Exposure of Resource to Wrong Sphere in Drupal Core

What is CVE-2020-13670?

CVE-2020-13670 is a high-severity vulnerability in Drupal Drupal, published on 11 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-668

Which versions are affected by CVE-2020-13670?

14 open source packages ship an affected version, including drupal/core, drupal and drupal/drupal. It affects 1 product.

Products include Drupal Drupal.

How do I fix CVE-2020-13670?

Upgrade drupal/core to a fixed version for your release line: 8.8.10, 8.9.6 or 9.0.6.

Is CVE-2020-13670 being exploited?

There is no known exploitation of CVE-2020-13670 in the wild and no public exploit code.

Other vulnerabilities in Drupal Drupal

• CVE-2026-9082 Drupal Core SQL Injection Exploited Critical 9.8
• CVE-2020-13671 Drupal core Un-restricted Upload of File Exploited High 8.8
• CVE-2019-6340 Drupal Core Remote Code Execution Exploited High 8.1
• CVE-2009-3352 Other in n/a Critical 10.0
• CVE-2024-55636 Drupal core - Less critical - Gadget chain - SA-CORE-2024-006 Critical 9.8

All Drupal Drupal vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-drupal-2020-13670, DRUPAL-CORE-2020-011, GHSA-mmjr-5q74-p3m4.