# CVE-2026-23756

> Vulnerability · severity: **MEDIUM** (CVSS 5.4).

## 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.

## Key facts

- **CVE ID:** CVE-2026-23756
- **Published:** 2026-04-20
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.4
- **CWE codes:** CWE-79

## Affected products

- `gfi:helpdesk`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-23756

## Citation

> AI Analytics. CVE-2026-23756. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-23756. Derived from NIST NVD. Licensed CC0.

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