CVE-2026-23756: GFI HelpDesk before 4.99.9 contains a stored cross-site scripting vulnerability in the Troubleshooter module where the…
CVE-2026-23756 · Severity: medium · CVSS 5.4 · Published 2026-04-20
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-23756 being exploited in the wild.
How severe is CVE-2026-23756?
Medium severity, with a CVSS score of 5.4, published 20 April 2026.
Which products and versions are affected?
GFI Helpdesk. The advisory does not name versions.
Is there a fix for CVE-2026-23756?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-23756?
Check whether you run GFI Helpdesk. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.