CVE-2026-96355: Webform - Critical - Remote Code Execution - SA-CONTRIB-2026-175

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-22 · updated 2026-10-23
Weakness: CWE-1336

Description

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.

Affected products

Drupal Webform: before 6.2.12; from 6.3.0 before 6.3.1 — fixed in 6.2.12, 6.3.1

How to fix

Upgrade to a fixed version: Drupal Webform 6.2.12, 6.3.1. Check the vendor advisory for mitigations.

References

https://www.drupal.org/sa-contrib-2026-175

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