DRUPAL-CONTRIB-2026-165 CVE-2026-96369
The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data.
- Severity
- 3.1 / 10
- Low · CVSS 3.1
- Exploit chance (EPSS)
- 0.21%
- Chance of exploitation in the next 30 days. Higher than 11.07% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-525 Use of Web Browser Cache Containing Sensitive Information
- Fix
6.3.1- Upgrade drupal/webform to this version or later
Description
The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data.
When Webform is used with JSON:API enabled, submissions may be cached without varying correctly by the authenticated user. If a webform is configured so that authenticated users can view their own submissions, a request to the JSON:API webform submission collection can return a cached response generated for a different user.
This can allow an authenticated user to view another user's webform submission data through the JSON:API collection endpoint.
This vulnerability is mitigated by the fact that JSON:API must be enabled, the affected webform must expose submissions through JSON:API, and the attacker must have an account with permission to view their own submissions for the affected webform.
Affected versions
Packagist:https://packages.drupal.org/8
| Package | Vulnerable | Fixed in |
|---|---|---|
| drupal/webform | < 6.2.12>= 6.3.0, < 6.3.1 |
6.2.126.3.1 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
drupal/webform Packagist:https://packages.drupal.org/8 → 6.3.1
- composer
composer require drupal/webform:^6.3.1
Severity breakdown
CVSS 3.1 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Weakness
CWE-525: Use of Web Browser Cache Containing Sensitive Information
The web application does not use an appropriate caching policy that specifies the extent to which each web page and associated form fields should be cached.
How to prevent it
- Architecture and Design: Protect information stored in cache.
- Implementation: Use a restrictive caching policy for forms and web pages that potentially contain sensitive information, such as "no-cache" in the Cache-Control header.
- Architecture and Design: Do not store unnecessarily sensitive information in the cache.
- Architecture and Design: Consider using encryption in the cache.
References
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| DRUPAL-CONTRIB-2026-175 The Webform module allows site builders to create forms, collect submissions, and render submitted values in configurable formats. | Critical | Also affects drupal/webform |
| DRUPAL-CONTRIB-2026-174 The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. | Medium | Also affects drupal/webform |
| DRUPAL-CONTRIB-2026-173 The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. | Medium | Also affects drupal/webform |
| DRUPAL-CONTRIB-2026-172 The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. | Medium | Also affects drupal/webform |
| DRUPAL-CONTRIB-2026-171 The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. | Medium | Also affects drupal/webform |
| DRUPAL-CONTRIB-2026-170 The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. | High | Also affects drupal/webform |
| DRUPAL-CONTRIB-2026-169 The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. | Medium | Also affects drupal/webform |
| DRUPAL-CONTRIB-2026-168 The Webform module allows site builders to create forms, collect submissions, and configure access to forms and submission data. | Low | Also affects drupal/webform |
Credits: Giuseppe (giuseppe87)
MergeHarbor checks every repository's dependencies against this database, ranks what matters by exploitability and reachability, routes it to the owning team and opens the fix pull request.
Check your repos with MergeHarbor