CVE-2026-96355 Drupal Webform - Template Injection

Drupal Webform <= 6.2.12 and 6.3.0 to 6.3.1 contains a template injection caused by improper neutralization of special elements in the template engine, letting attackers inject code remotely, exploit requires crafted input.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.22% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Template Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
22 October 2026
Updated
23 October 2026
Weakness
CWE-1336

Vendor fix

Update to the latest Webform version beyond 6.3.1.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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