Drupal core Un-restricted Upload of File

Added to KEV
2022-01-18
Federal due date
2022-07-18
Vendor
Drupal
Product
Drupal core
EPSS
89.3th percentile (score 0.045, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2020-13671

CISA short description

Improper sanitization in the extension file names is present in Drupal core.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.