(CVE-2026-96366)
Vulnerability from drupal – Published: 2026-09-23 16:25 – Updated: 2026-09-23 16:46 – Source websiteThe 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.
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"affected_versions": "\u003c6.2.12 || \u003e=6.3.0 \u003c6.3.1"
},
"package": {
"ecosystem": "Packagist:https://packages.drupal.org/8",
"name": "drupal/webform"
},
"ranges": [
{
"database_specific": {
"constraint": "\u003c6.2.12"
},
"events": [
{
"introduced": "0"
},
{
"fixed": "6.2.12"
}
],
"type": "ECOSYSTEM"
},
{
"database_specific": {
"constraint": "\u003e=6.3.0 \u003c6.3.1"
},
"events": [
{
"introduced": "6.3.0"
},
{
"fixed": "6.3.1"
}
],
"type": "ECOSYSTEM"
}
],
"severity": []
}
],
"aliases": [
"CVE-2026-96366"
],
"credits": [
{
"contact": [
"https://www.drupal.org/u/blackpharao"
],
"name": "Sandro Kneub\u00fchl (blackpharao)"
},
{
"contact": [
"https://www.drupal.org/u/omidsec"
],
"name": "omidsec"
}
],
"details": "The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data.\n\nSite builders may also configure handlers for processing submissions, including email handlers that may include uploaded files as attachments.\n\nIn 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.\n\nThis 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.",
"id": "DRUPAL-CONTRIB-2026-169",
"modified": "2026-09-23T16:46:29.000Z",
"published": "2026-09-23T16:25:53.000Z",
"references": [
{
"type": "WEB",
"url": "https://www.drupal.org/sa-contrib-2026-169"
}
],
"schema_version": "1.7.0"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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