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CVE-2020-13671Drupal core Un-restricted Upload of File
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.
8.8 HIGHEPSS 36.16%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.8 | HIGH | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 6.5 | MEDIUM | 2.0NVD | AV:N/AC:L/Au:S/C:P/I:P/A:P |
CISA required action
⚡ Known exploited · remediation due Jul 18, 2022
Apply updates per vendor instructions.
Details
- CVE ID
- CVE-2020-13671
- Status
- Analyzed
- Assigner (CNA)
- drupal
- Published
- Nov 20, 2020
- Last modified
- 2026-06-17 02:53 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
DrupalDrupal Core4 version ranges
- 9.0 versions prior to 9.0.8
- 8.9 versions prior to 8.9.9
- 8.8 versions prior to 8.8.11
- 7 versions prior to 7.74
References
- lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KSFM672XW3X6BR7TVKRD63SLZGKK437/
- lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KWM4CTMEGAC4I2CHYNJVSROY4CVXVEUT/
- drupal.org https://www.drupal.org/sa-core-2020-012
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-13671