drupal/webform - SA-CONTRIB-2026-172
The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. Form submissions may include uploaded files.
The module does not sufficiently force certain uploaded file types to download when served. Under certain site configurations, a file uploaded through a webform could be rendered inline by a browser, resulting in a cross-site scripting vulnerability.
This vulnerability is mitigated by the fact that a user with permission to create or edit webforms must configure the form to allow the affected file extensions, and a user must specifically open the uploaded file.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/webform | < 6.2.12, >= 6.3.0, < 6.3.1 | 6.2.12, 6.3.1 |
| Drupal module | drupal/webform | < 6.2.12, >= 6.3.0, < 6.3.1 | 6.2.12, 6.3.1 |
References
- Weakness (CWE)
-- Platform
- Composer, Drupal
- Package
drupal/webform- Disclosed
- 23.09.2026
- Updated
- 11.10.2026 13:17
Sources and licenses
OSV / GitHub Advisory Database - DRUPAL-CONTRIB-2026-172 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/webform
All published vulnerabilities of this package (Drupal module), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 31
- First → latest
- 05.2020 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Unrated 31
Disclosures per year
- 2020: 8
- 2021: 3
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 20
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