CVE-2026-90821
MediumCVSS 5.4Summary
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.
Risk Assessment
A malicious script may be stored and executed in other panel users' browsers, potentially leading to session theft, account takeover, or unauthorized actions on behalf of the victim. The risk affects organizations using Crafty Controller with multiple user access.
Recommendation
Update Crafty Controller to a version containing the fix, and until then restrict access to webhook functionality to trusted administrators only. Additionally, enforce input validation and sanitization in the Webhook URL field and monitor for unusual configuration values.
Other vulnerabilities in Crafty Controller
See all- CVE-2026-18516Critical
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.
- CVE-2026-13716Critical
Path traversal in server import and admin file upload in Crafty Controller. Allows a remote, authenticated attacker to upload files to arbitrary paths permitted to the Crafty Controller application and perform remote code execution.
- CVE-2025-14700Critical
An input neutralization vulnerability in the Webhook Template component of Crafty Controller allows a remote, authenticated attacker to perform remote code execution via Server Side Template Injection.
- CVE-2025-14701High
An input neutralization vulnerability in the Server MOTD component of Crafty Controller allows a remote, unauthenticated attacker to perform stored XSS via server MOTD modification.
Original NVD description (English source)
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
Vulnerability data from NVD (NIST) · CISA KEV · EPSS