PT-2026-33821 · Gfi · Helpdesk

Alex Williams + 1 · Published 2026-04-20 · Updated 2026-04-20 · CVE-2026-23753

NVD

CVSS v3.1

4.8

Medium

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-23753

Affected Products

Helpdesk

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-23753 · Security Note
• https://gfi.ai/products-and-solutions/email-and-messaging-solutions/helpdesk/resources/product-releases · Patch, Vendor Advisory
• https://vulncheck.com/advisories/gfi-helpdesk-stored-xss-via-charset-parameter · Note