Project: 
Webform
Project machine name: 
webform
Date: 
2026-September-23
Security risk: 
Moderately critical 13 ∕ 25 AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Default
Vulnerability: 
Access bypass, Server-side request forgery
Affected versions: 
<6.2.12 || >=6.3.0 <6.3.1
CVE IDs: 
CVE-2026-96370
Description: 

The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data.

The module includes a Webform Submission Export/Import submodule that allows importing submission data from uploaded CSV files or remote URLs.

The submodule did not sufficiently validate access to export/import functionality. A user who could edit webform submissions and access webform results could also access the import interface, including the remote URL import path, leading to a server-side request forgery vulnerability.

Sites that do not enable the Webform Submission Export/Import submodule are not affected.

Solution: 

Install the latest version:

For sites that need remote imports, explicitly configure the trusted hosts in settings.php:

$settings['webform_submission_export_import_csv_hosts'] = ['staging.example.com'];
$settings['webform_submission_export_import_file_hosts'] = ['files.staging.example.com', '*.google.com'];
Reported By: 
Fixed By: 
Coordinated By: