CVE-2026-18516 PUBLISHED

Improper Encoding or Escaping of Output in Crafty Controller

Assigner: GitLab
Reserved: 31.07.2026 Published: 16.10.2026 Updated: 16.10.2026

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

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS Score: 9.6

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Arcadia Technology, LLC
Product	Crafty Controller
Versions	Default: unaffected affected from 0 to 4.10.8 (incl.)

Solutions

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

Credits

Thank you to [0x90](https://0x90.sh/) on GitLab for reporting this issue. finder

References

https://gitlab.com/crafty-controller/crafty-4/-/work_items/743

Problem Types

CWE-116: Improper Encoding or Escaping of Output CWE