---
id: CVE-2026-18516
title: Improper Encoding or Escaping of Output in Crafty Controller
summary: >-
  An output escaping vulnerability in the Audit Logs component of Crafty
  Controller allows a remote, unauthenticated attacker to perform stored
  cross-site scripting via HTTP header injection
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-116
vendor: 'Arcadia Technology, LLC'
product: Crafty Controller
affected:
  - crafty_controller <= 4.10.8
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T13:37:55.079Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-18516'
references:
  - url: 'https://gitlab.com/crafty-controller/crafty-4/-/work_items/743'
tags:
  - cve.org
ingestedAt: '2026-10-16T14:07:42.843Z'
---

## Overview

An output escaping vulnerability in the Audit Logs component of Crafty Controller allows a remote, unauthenticated attacker to perform stored cross-site scripting via HTTP header injection

## Affected

- `crafty_controller <= 4.10.8`

## Remediation

Upgrade to version 4.11.0 or make Crafty Controller only accessible behind a reverse proxy that blocks injection of the X-Real-IP and X-Forwarded-For headers