---
id: CVE-2026-23753
title: GFI HelpDesk < 4.99.9 Stored XSS via charset Parameter
summary: "GFI HelpDesk before\_4.99.9 contains a stored cross-site scripting vulnerability in the language management functionality where the charset POST parameter is passed directly to SWIFT_Language::Create() without HTML sanitization and subseq…"
severity: medium
cvss: 4.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: GFI Software
product: HelpDesk
affected:
  - HelpDesk < 4.99.9
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-04-21T13:31:02.164059Z'
published: '2026-04-20'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T15:19:50.351Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-23753'
references:
  - url: >-
      https://gfi.ai/products-and-solutions/email-and-messaging-solutions/helpdesk/resources/product-releases
  - url: >-
      https://www.vulncheck.com/advisories/gfi-helpdesk-stored-xss-via-charset-parameter
tags:
  - cve.org
epss: 0.00151
epssPercentile: 0.0363
ingestedAt: '2026-10-01T15:48:17.869Z'
---

## Overview

GFI HelpDesk before 4.99.9 contains a stored cross-site scripting vulnerability in the language management functionality where the charset POST parameter is passed directly to SWIFT_Language::Create() without HTML sanitization and subsequently rendered unsanitized by View_Language.RenderGrid(). An authenticated administrator can inject arbitrary JavaScript through the charset field when creating or editing a language, and the payload executes in the browser of any administrator viewing the Languages page.

## Affected

- `HelpDesk < 4.99.9`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.