CVE-2026-23753 MEDIUM

CVE-2026-23753: GFI HelpDesk < 4.99.9 Stored XSS via charset Parameter

Vendor Gfi Software
Product HelpDesk
Weakness CWE-79 · XSS
Published April 20, 2026
Last update April 21, 2026

CVSS base score

4.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 20, 2026 CVE published
April 21, 2026 Record updated