CVE-2020-13671 KEV
8.8
HIGH · CVSS 3.1 · EPSS 35.4% (pctl 98)
Patch first
On CISA KEV — known exploited in the wild, due 2022-07-18.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 35.35% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-434 |
| On CISA KEV | yes — remediate by 2022-07-18 |
| Public exploit | none known |
| Published | 2020-11-20 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Drupal core Un-restricted Upload of File |
|---|---|
| Added | 2022-01-18 |
| Due | 2022-07-18 |
| Vendor / product | Drupal / Drupal core |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| drupal | drupal |
| fedoraproject | fedora |
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KSFM672XW3X6BR7TVKRD63SLZGKK437/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KWM4CTMEGAC4I2CHYNJVSROY4CVXVEUT/
- https://www.drupal.org/sa-core-2020-012
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KSFM672XW3X6BR7TVKRD63SLZGKK437/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KWM4CTMEGAC4I2CHYNJVSROY4CVXVEUT/
- https://www.drupal.org/sa-core-2020-012
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-13671
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