---
id: CVE-2026-90821
title: >-
  An input neutralization vulnerability in the Webhook URL form field component
  of Crafty Controller allows a remote, authenticated attacker to perform stored
  XSS via malicious form input
summary: >-
  An input neutralization vulnerability in the Webhook URL form field component
  of Crafty Controller allows a remote, authenticated attacker to perform stored
  XSS via malicious form input
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: 'Arcadia Technology, LLC'
product: Crafty Controller
affected:
  - crafty_controller >= 4.2.0 < 4.11.0
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T20:04:29.760'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90821'
references:
  - url: 'https://gitlab.com/crafty-controller/crafty-4/-/work_items/745'
    label: cve@gitlab.com
tags:
  - nvd
  - cve.org
epss: 0.00158
epssPercentile: 0.04944
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T14:39:41.834942Z'
ingestedAt: '2026-10-16T14:07:42.844Z'
---

## Overview

An input neutralization vulnerability in the Webhook URL form field component of Crafty Controller allows a remote, authenticated attacker to perform stored XSS via malicious form input

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.