Read the docs
TI-2022-08982 Aliases CVE-2022-25277GHSA-6955-67hm-vjjq

Unrestricted file upload in Drupal Core

Priority LOW 37CWE-434Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-434.

Summary

Drupal core sanitizes filenames with dangerous extensions upon upload (reference: SA-CORE-2020-012) and strips leading and trailing dots from filenames to prevent uploading server configuration files (reference: SA-CORE-2019-010). However, the protections for these two vulnerabilities previously did not work correctly together. As a result, if the site were configured to allow the upload of files with an htaccess extension, these files' filenames would not be properly sanitized. This could allow bypassing the protections provided by Drupal core's default .htaccess files and possible remote code execution on Apache web servers. This issue is mitigated by the fact that it requires a field administrator to explicitly configure a file field to allow htaccess as an extension (a restricted permission), or a contributed module or custom code that overrides allowed file uploads.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01422 73rd percentileScored 2026-11-07
Fix Fixed Core (Drupal): 9.4.3, 9.3.19drupal/core (Packagist): 9.3.19, 9.4.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DrupalCore9.4 to before 9.4.3; 9.3 to before 9.3.199.4.3, 9.3.19Patch availableCNA
—drupal/core (Packagist)8.0.0 to before 9.3.199.3.19Patch availableGHSA-6955-67hm-vjjq
—drupal/core (Packagist)9.4.0 to before 9.4.39.4.3Patch availableGHSA-6955-67hm-vjjq
  • Core VendorDrupal Affected 9.4 to before 9.4.3; 9.3 to before 9.3.19 Fixed in 9.4.3, 9.3.19 Patch available CNA
  • drupal/core (Packagist) Vendor— Affected 8.0.0 to before 9.3.19 Fixed in 9.3.19 Patch available GHSA-6955-67hm-vjjq
  • drupal/core (Packagist) Vendor— Affected 9.4.0 to before 9.4.3 Fixed in 9.4.3 Patch available GHSA-6955-67hm-vjjq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*8.0.0 to before 9.3.19; 9.4.0 to before 9.4.3VulnerableDrupal
  • cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* Versions 8.0.0 to before 9.3.19; 9.4.0 to before 9.4.3 Vulnerable ·Drupal

Remediation

  • Fix · CNA Core (Drupal) Fixed in 9.4.3, 9.3.19
  • Fix · GHSA-6955-67hm-vjjq drupal/core (Packagist) Fixed in 9.3.19 Advisory →
  • Fix · GHSA-6955-67hm-vjjq drupal/core (Packagist) Fixed in 9.4.3 Advisory →

Fixed in the same release

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

  • Release ·

    Drupal Core 9.3.19, 9.4.3

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2022-08983 Under certain circumstances, the Drupal core form API evaluates form element access…Priority LOW 30
    • TI-2022-08981 Cross-site scripting in Drupal CorePriority LOW 28
    Show all 3 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-2022-25277
  2. 2026-10-03 Alias added: GHSA-6955-67hm-vjjq

References

Advisory 2

Other 4

  • 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