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PatchSiren cyber security CVE debrief

CVE-2020-13671 Drupal CVE debrief

CVE-2020-13671 is a Drupal core vulnerability described as an unrestricted file upload issue. It was added to CISA’s Known Exploited Vulnerabilities catalog on 2022-01-18, which means defenders should treat it as actively important to remediate. The supplied CISA record directs organizations to apply updates per vendor instructions.

Vendor
Drupal
Product
Drupal core
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-01-18
Original CVE updated
2022-01-18
Advisory published
2022-01-18
Advisory updated
2022-01-18

Who should care

Organizations running Drupal core, especially teams responsible for internet-facing web applications, patch management, and security operations.

Technical summary

The supplied corpus identifies CVE-2020-13671 as an unrestricted upload of file issue in Drupal core. The CISA KEV listing confirms it as a known exploited vulnerability and points defenders to vendor-guided updates. No additional technical specifics were included in the source corpus.

Defensive priority

High. Because this CVE is listed in CISA KEV, remediation should be prioritized ahead of routine maintenance windows, with attention to any exposed Drupal core deployments.

Recommended defensive actions

  • Apply the vendor-recommended updates for Drupal core as soon as possible.
  • Verify which Drupal instances are exposed and confirm their patch status.
  • Review web application upload features and access controls on affected systems.
  • Monitor for unexpected file upload activity and other signs of misuse.
  • Use the CISA KEV catalog and the CVE/NVD record to track remediation status.

Evidence notes

This debrief is based only on the provided CISA KEV source item and the official CVE/NVD resource links. The corpus identifies the issue as an unrestricted file upload vulnerability in Drupal core and records it as a CISA Known Exploited Vulnerability added on 2022-01-18, with a due date of 2022-07-18. No CVSS score or further exploit details were supplied.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-13671 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-13671

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2020-13671 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-13671

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.