CVE-2026-23753: Gfi Helpdesk

Medium severity, CVSS 4.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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 products

• Gfi Helpdesk: before 4.99.9 (fixed in 4.99.9)

Published 2026-04-20. Last modified 2026-06-17.