drupal/webform - SA-CONTRIB-2026-169
The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data.
Site builders may also configure handlers for processing submissions, including email handlers that may include uploaded files as attachments.
In affected configurations, Webform did not sufficiently validate a managed file upload element when processing a new submission. A user with access to submit a vulnerable webform could potentially access other managed files they were not authorized to view.
This vulnerability is mitigated by the fact that a site must have a Webform with a managed file upload element and a configuration that exposes submitted files, such as allowing users to view their own webform submissions or sending uploads as email attachments.
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-2026-169 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/webform
All published vulnerabilities of this package (Composer package), 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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