CVE-2026-90821 PUBLISHED

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Crafty Controller

Assigner: GitLab
Reserved: 13.09.2026 Published: 16.10.2026 Updated: 16.10.2026

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

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 5.4

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

CVSS 3.1

Product Status

Vendor	Arcadia Technology, LLC
Product	Crafty Controller
Versions	Default: unaffected affected from 4.2.0 to 4.11.0 (excl.)

Solutions

Upgrade to version 4.11.0

Credits

Thank you to [Kacper Leszczyński / szotgan](https://gitlab.com/szotgan) on GitLab for reporting this issue. finder

References

https://gitlab.com/crafty-controller/crafty-4/-/work_items/745

Problem Types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE