---
id: "CVE-2026-96363"
kind: "vulnerability"
aliases: ["CVE-2026-96363"]
title: "Drupal Webform: privilege misconfiguration lets users plant stored XSS"
severity: "medium"
cvss: null
epss: 0.00193
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["drupal", "package", "self-hosted", "webform"]
not_affected_if: ["patched-version", "webform-not-installed"]
published_at: "2026-10-22T02:17:06+00:00"
first_seen_at: "2026-10-23T21:57:30+00:00"
updated_at: "2026-10-25T05:00:34+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96363", "first_seen_at": "2026-10-23T21:57:30+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-96363", "first_seen_at": "2026-10-24T07:15:51+00:00"}]
---

# Drupal Webform: privilege misconfiguration lets users plant stored XSS

Drupal Webform versions up to 6.2.12 and 6.3.0 through 6.3.1 have a permission flaw that allows stored cross-site scripting. An attacker with a low-privilege role can store script in form content that runs in other users' browsers.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Webform version with `drush pm:list --filter=webform` or the Extend page in the Drupal admin.
- Review which roles hold Webform element or markup permissions on the Permissions page.

## Fix

- Upgrade the Drupal Webform module to a release newer than `6.3.1` (the sources list `6.2.12` and `6.3.1` as affected; the fixed version is unknown).
- Remove Webform permissions from untrusted roles until patched.

## Timeline

- 2026-10-23T21:57:30+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-96363
- 2026-10-24T07:15:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-96363

## From the sources

Privilege Defined With Unsafe Actions vulnerability in Drupal Webform allows Stored XSS. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_