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CVE-2026-96371 Drupal CVE debrief

The Drupal Webform module is vulnerable to Stored Cross-Site Scripting (XSS). This issue affects Webform versions from 0.0.0 to 6.2.12 and from 6.3.0 to 6.3.1. Users of these versions should assess their exposure and prioritize patching to prevent potential attacks. The vulnerability allows an attacker to inject malicious scripts, potentially leading to user session compromise or data tampering. Security teams and system administrators should review inventory of affected Webform instances and take immediate action.

Vendor
Drupal
Product
Webform
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-22
Original CVE updated
2026-10-22
Advisory published
2026-10-22
Advisory updated
2026-10-22

Who should care

Drupal Webform users, security teams, and system administrators should assess exposure, prioritize patching, and review inventory of affected Webform instances. The vulnerability has significant operational impacts, including potential for attacker-controlled script execution, risk of user session compromise, and possible data tampering or theft.

Why it matters

CVE-2026-96371 is a Stored XSS vulnerability in Drupal Webform that requires immediate attention from Webform users. The vulnerability allows an attacker to inject malicious scripts, potentially leading to user session compromise or data tampering. Security teams and system administrators should assess exposure, prioritize patching, and review inventory of affected Webform instances.

  • Potential for attacker-controlled script execution
  • Risk of user session compromise
  • Possible data tampering or theft
  • Need for urgent patching and inventory review

Technical summary

The Drupal Webform module is vulnerable to Stored Cross-Site Scripting (XSS). This issue affects Webform versions from 0.0.0 to 6.2.12 and from 6.3.0 to 6.3.1. The vulnerability allows an attacker to inject malicious scripts, potentially leading to user session compromise or data tampering. Users of these versions should assess their exposure and prioritize patching to prevent potential attacks.

Defensive priority

Assess exposure, prioritize patching for Webform users.

Recommended defensive actions

  • Assess Webform usage and versions in your environment
  • Prioritize patching to version 6.2.12 or 6.3.1
  • Review and update inventory of affected Webform instances

Evidence notes

Official CVE and NVD records, Drupal SA-CONTRIB-2026-166 advisory. The CVE record was published on 2026-10-22T01:21:40.524Z and has not been modified since then. The vulnerability has been confirmed in Webform versions from 0.0.0 to 6.2.12 and from 6.3.0 to 6.3.1. Defenders should verify Webform usage and versions in their environment, and review compensating controls for exposed systems.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-96371 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-96371

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-96371 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-96371

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.