VULNERABILITY INTELLIGENCE

CVE-2020-13671

CVSS score8.8 HIGH
EPSS probability36.17%
CISA KEVKnown exploited vulnerability
Published2020-11-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Drupal core Un-restricted Upload of File

Vendor / product: Drupal / Drupal core

Description

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.

Weakness classification

  • nvd@nist.gov: CWE-434
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-434

Primary references