CVE-2026-23756
GFI HelpDesk < 4.99.9 Stored XSS via Troubleshooter Step Subject
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | gfi software |
| Product | helpdesk |
| Published | Apr 20, 2026 |
| Last Updated | Apr 20, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
GFI Software / HelpDesk
0 < 4.99.9
References
Credits
Alex Williams from Pellera Technologies VulnCheck