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high8.8Known exploited

CVE-2020-13671

Drupal core Unrestricted Upload of File with Dangerous Type

Exploited in the wild

This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2022-01-18. Federal due date: 2022-07-18.

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Impact

Drupal core does not properly sanitize certain filenames on uploaded files, which can lead to files being interpreted as the incorrect extension and served as the wrong MIME type or executed as PHP for certain hosting configurations. This issue affects: Drupal Drupal Core 9.0 versions prior to 9.0.8, 8.9 versions prior to 8.9.9, 8.8 versions prior to 8.8.11, and 7 versions prior to 7.74.

Affected packages

EcosystemPackageAffectedFixed in
composerdrupal/core>= 9.0.0, < 9.0.89.0.8
composerdrupal/drupal>= 7.0.0, < 7.747.74

Affected products

VendorProductAffected versions
DrupalDrupal
from 7.0 before 7.74
from 8.8.0 before 8.8.11
from 8.9.0 before 8.9.9
from 9.0.0 before 9.0.8
FedoraprojectFedora
Versions 32, 33

Weakness classification

CWE-434

References