Stored Cross-Site Scripting Vulnerability in Helpy by Helpy Io
CVE-2026-40230

4.8MEDIUM

Key Information:

Vendor

Helpyio

Status
Helpy
Vendor
CVE Published:
29 April 2026

What is CVE-2026-40230?

A stored cross-site scripting (XSS) vulnerability exists within Helpy's knowledge base Doc rendering logic. This flaw allows an authenticated user with admin or agent editor privileges to embed arbitrary HTML or JavaScript in the body field of knowledge base documents. As a result, an attacker could exploit this issue to execute malicious scripts, potentially leading to unauthorized access to sensitive information or manipulation of the application’s behavior.

Affected Version(s)

helpy Windows 2.8.0

References

https://fluidattacks.com/es/advisories/prisioneros
third-party-advisory
https://github.com/helpyio/helpy
product

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oscar Uribe
Fluid Attacks' AI SAST Scanner
.