Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gfi | Helpdesk | < 4.99.9 |
Related Weaknesses (CWE)
References
- https://gfi.ai/products-and-solutions/email-and-messaging-solutions/helpdesk/resRelease Notes
- https://www.vulncheck.com/advisories/gfi-helpdesk-stored-xss-via-troubleshooter-Third Party Advisory
FAQ
What is CVE-2026-23756?
CVE-2026-23756 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 Edi...
How severe is CVE-2026-23756?
CVE-2026-23756 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23756?
Check the references section above for vendor advisories and patch information. Affected products include: Gfi Helpdesk.