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PatchSiren cyber security CVE debrief

CVE-2026-96357 Drupal CVE debrief

A Cross-site Scripting (XSS) vulnerability exists in Drupal Webform, affecting versions from 0.0.0 to 6.2.12 and 6.3.0 to 6.3.1. This issue allows for Stored XSS. The CVE record was published on 2026-10-22T01:21:35.556Z and has not been modified since then. Defenders should assess exposure and prioritize updates to prevent exploitation of this Stored XSS vulnerability. The vulnerability allows malicious scripts to be executed on users' browsers, emphasizing the need for prompt review and updates of Webform instances.

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

Defenders responsible for Drupal Webform instances should assess exposure and prioritize updates to prevent exploitation of this Stored XSS vulnerability.

Why it matters

CVE-2026-96357 is a Cross-site Scripting (XSS) vulnerability in Drupal Webform, affecting multiple versions. Defenders should prioritize reviewing and updating Webform instances to prevent exploitation.

  • Defenders must review and update Webform versions to prevent exploitation
  • Stored XSS can lead to malicious scripts being executed on users' browsers
  • Defenders should implement input validation and output encoding to prevent XSS

Technical summary

The CVE record describes a Cross-site Scripting (XSS) vulnerability in Drupal Webform, affecting versions from 0.0.0 to 6.2.12 and 6.3.0 to 6.3.1. This issue allows for Stored XSS, which can lead to malicious scripts being executed on users' browsers.

Defensive priority

Defenders should prioritize reviewing and updating Webform versions to ensure they are not vulnerable, as this issue allows for Stored XSS, which can lead to malicious scripts being executed on users' browsers.

Recommended defensive actions

  • Review and update Webform versions to ensure they are not vulnerable
  • Implement input validation and output encoding to prevent XSS
  • Monitor for suspicious activity on Webform instances

Evidence notes

The CVE record and source item provide details on the vulnerability, including affected versions and a reference to the Drupal security advisory. The vulnerability affects Drupal Webform versions from 0.0.0 to 6.2.12 and 6.3.0 to 6.3.1, allowing for Stored XSS. Defenders should verify the affected scope and review Webform instances for potential exposure. Evidence is limited to the CVE record and source item, and further verification is recommended.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-96357 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-96357

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

  • CVE-2026-96357 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-96357

    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.