CVE-2020-13675

Name: CVE-2020-13675
Creator: NVD / NIST
Published: 2022-02-11T16:15:08.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.22%

Last modified Jun 17, 2026

CVE-2020-13675 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. EPSS estimates a 1.22% chance of exploitation in the next 30 days.

Description

Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.22%

64.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Drupal	Drupal	>= 8.0.0, < 8.9.19
Drupal	Drupal	>= 9.1.0, < 9.1.13
Drupal	Drupal	>= 9.2.0, < 9.2.6

References

https://www.drupal.org/sa-core-2021-008Mitigation, Patch, Vendor Advisory
https://www.drupal.org/sa-core-2021-008Mitigation, Patch, Vendor Advisory

Timeline

Published: Feb 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13675?

How severe is CVE-2020-13675?

CVE-2020-13675 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13675?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-13675?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST