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CVE-2020-13671: *Update November 18: Documented longer list of dangerous file extensions* Drupal core does not properly sanitize certai

high KEV Affects drupal/core, drupal/drupal. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified ; listed on CISA KEV 2022-01-18.

*Update November 18: Documented longer list of dangerous file extensions* Drupal core does not properly sanitize certai

Package
drupal/core Composer
Affected versions
>= 8.0.0 <8.8.11 or >= 8.9.0 <8.9.9 or >=9.0.0 <9.0.8 or >=9.0.0 and <9.0.8 or >=8.9.0 and <8.9.9 or >=8.0.0 and <8.8.11 or >=7.0.0 and <7.74 or >=8.0.0 and <8.1.0 or >=8.1.0 and <8.2.0 or >=8.2.0 and <8.3.0 or >=8.3.0 and <8.4.0 or >=8.4.0 and <8.5.0 or >=8.5.0 and <8.6.0 or >=8.6.0 and <8.7.0 or >=8.7.0 and <8.8.0 or >=8.8.0 and <8.8.11
Fixed in
8.8.11, 8.9.9, 9.0.8, 7.74
Severity
high  CVSS 8.8
Exploitation
KEV listed by CISA as actively exploited · EPSS 36% (98.5th percentile)
Published
2020-11-18
Source
osv.dev

References

Drupal core Unrestricted Upload of File with Dangerous Type

Package
drupal/drupal Composer
Affected versions
>=7.0.0 and <7.74 or >=8.0.0 and <8.8.11 or >=8.9.0 and <8.9.9 or >=9.0.0 and <9.0.8 or >=8.0.0 and <8.1.0 or >=8.1.0 and <8.2.0 or >=8.2.0 and <8.3.0 or >=8.3.0 and <8.4.0 or >=8.4.0 and <8.5.0 or >=8.5.0 and <8.6.0 or >=8.6.0 and <8.7.0 or >=8.7.0 and <8.8.0 or >=8.8.0 and <8.8.11
Fixed in
7.74, 8.8.11, 8.9.9, 9.0.8
Severity
high  CVSS 8.8
Exploitation
KEV listed by CISA as actively exploited · EPSS 36% (98.5th percentile)
Published
2021-10-12
Source
osv.dev

References

CWE-434
NVD recorddrupal/core advisoriesdrupal/drupal advisories

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