CVE-2026-96355
Webform - Critical - Remote Code Execution - SA-CONTRIB-2026-175
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Webform - Critical - Remote Code Execution - SA-CONTRIB-2026-175
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.
- Record
CVE-2026-96355- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-1336
- Updated
- 2026-11-02
EUVDEUVD-2026-107826
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.
- Record
EUVD-2026-107826- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4cxr-j7h5-h594
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal...
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.
- Record
GHSA-4cxr-j7h5-h594- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-1336
- Updated
- 2026-11-02
NVD
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.
- Record
CVE-2026-96355- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-1336
- Updated
- 2026-11-02
OSV
Webform - Critical - Remote Code Execution - SA-CONTRIB-2026-175
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.
- Record
CVE-2026-96355- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-1336
- Updated
- 2026-11-05
OSVDRUPAL-CONTRIB-2026-175 No score
The Webform module allows site builders to create forms, collect submissions, and render submitted values in configurable formats.
Webform does not sufficiently exclude certain format templates from token replacement. This can allow an attacker to submit data that is evaluated as template code when a submission is rendered. Depending on the site configuration and enabled modules, this may lead to information disclosure, stored cross-site scripting, or remote code execution.
This vulnerability is mitigated by the fact that an affected webform must be configured with a custom multiple-value item format that includes submission-value tokens. Some impacts may also depend on additional enabled modules or site-specific configuration.
- Record
DRUPAL-CONTRIB-2026-175- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/webformPackagist:https://packages.drupal.org/8 |
before 6.2.12, 6.3.0 up to 6.3.1 | 6.2.126.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-96355 is a critical vulnerability (CVSS 9.1) in Drupal Webform, published September 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. Fixed in drupal/webform 6.2.12.