CVE-2026-23758 MEDIUM

CVE-2026-23758: GFI HelpDesk < 4.99.9 Stored XSS via editsubject Parameter

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

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 ticket subject field that allows authenticated staff members to inject malicious JavaScript by manipulating the editsubject POST parameter. Attackers can inject XSS payloads through inadequate sanitization in Controller_Ticket.EditSubmit() that bypass the incomplete SanitizeForXSS() method to execute arbitrary JavaScript when other staff members or administrators view the affected ticket.

Key dates

02Disclosure timeline

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