Description

GFI HelpDesk before 4.99.9 contains a stored cross-site scripting vulnerability in the Troubleshooter module where the subject POST parameter is not sanitized in Controller_Step.InsertSubmit() and EditSubmit() before being rendered by View_Step.RenderViewSteps(). An authenticated staff member can inject arbitrary JavaScript into the step subject field, and the payload executes when any user navigates to Troubleshooter > View Troubleshooter and clicks the affected step link.

INFO

Published Date :

2026-04-20T17:30:51.162Z

Last Modified :

2026-04-20T18:08:49.925Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23756 vulnerability.

Vendors Products
Gfi
  • Helpdesk
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23756.

URL Resource
https://gfi.ai/products-and-solutions/email-and-messaging-solutions/helpdesk/resources/product-releases cve-icon cve-icon
https://www.vulncheck.com/advisories/gfi-helpdesk-stored-xss-via-troubleshooter-step-subject cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact