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TI-2020-10737 Aliases CVE-2020-13677GHSA-3xr3-phjp-g6p2

Improper access control in Drupal Core

Priority LOW 35CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected.

Why it matters now

EPSS 0.01216 68th percentileScored 2026-11-07
Fix Fixed Core (Drupal): 9.2.6, 9.1.13, 8.9.19drupal/core (Packagist): 8.9.19, 9.1.13, 9.2.6

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
DrupalCore9.2.x to before 9.2.6; 9.1.x to before 9.1.13; 8.9.x to before 8.9.199.2.6, 9.1.13, 8.9.19Patch availableCNA
—drupal/core (Packagist)8.0.0 to before 8.9.198.9.19Patch availableGHSA-3xr3-phjp-g6p2
—drupal/core (Packagist)9.1.0 to before 9.1.139.1.13Patch availableGHSA-3xr3-phjp-g6p2
—drupal/core (Packagist)9.2.0 to before 9.2.69.2.6Patch availableGHSA-3xr3-phjp-g6p2
  • Core VendorDrupal Affected 9.2.x to before 9.2.6; 9.1.x to before 9.1.13; 8.9.x to before 8.9.19 Fixed in 9.2.6, 9.1.13, 8.9.19 Patch available CNA
  • drupal/core (Packagist) Vendor— Affected 8.0.0 to before 8.9.19 Fixed in 8.9.19 Patch available GHSA-3xr3-phjp-g6p2
  • drupal/core (Packagist) Vendor— Affected 9.1.0 to before 9.1.13 Fixed in 9.1.13 Patch available GHSA-3xr3-phjp-g6p2
  • drupal/core (Packagist) Vendor— Affected 9.2.0 to before 9.2.6 Fixed in 9.2.6 Patch available GHSA-3xr3-phjp-g6p2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*8.0.0 to before 8.9.19; 9.1.0 to before 9.1.13; 9.2.0 to before 9.2.6VulnerableDrupal
  • cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.9.19; 9.1.0 to before 9.1.13; 9.2.0 to before 9.2.6 Vulnerable ·Drupal

Remediation

  • Fix · CNA Core (Drupal) Fixed in 9.2.6, 9.1.13, 8.9.19
  • Fix · GHSA-3xr3-phjp-g6p2 drupal/core (Packagist) Fixed in 8.9.19 Advisory →
  • Fix · GHSA-3xr3-phjp-g6p2 drupal/core (Packagist) Fixed in 9.1.13 Advisory →
  • Fix · GHSA-3xr3-phjp-g6p2 drupal/core (Packagist) Fixed in 9.2.6 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Drupal Core 8.9.19, 9.1.13, 9.2.6

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2020-10735 Improper access control in Drupal CorePriority MEDIUM 45
    • TI-2020-10736 Improper access control in Drupal CorePriority LOW 30
    • TI-2020-10734 Cross-site request forgery in Drupal CorePriority LOW 29
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-13677
  2. 2026-10-03 Alias added: GHSA-3xr3-phjp-g6p2

References

Patch 1

Advisory 1

Other 2

  • TI-2026-07979 Drupal core - Highly critical - SQL injection - SA-CORE-2026-004 KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-05494 Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004 KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-05493 Improper input validation in Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-10731 Unrestricted file upload in Drupal Core KEVCVSS 3.1HIGH 8.8
  • TI-2019-04505 Drupal core - Highly critical - Remote Code Execution KEVCVSS 3.1HIGH 8.1
  • TI-2020-17477 Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks… KEVCVSS 3.1HIGH 7.8
See all 278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences