CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionNVD
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.
AnalysisAI
GFI HelpDesk before version 4.99.9 allows authenticated staff members to inject persistent JavaScript into ticket subject fields via inadequate sanitization in the editsubject POST parameter, enabling arbitrary script execution when other staff or administrators view affected tickets. The vulnerability impacts confidentiality and integrity within the application's scope, with exploitation confirmed possible but requiring valid staff credentials and user interaction (viewing the malicious ticket). …
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-23910
GHSA-rf6c-2qc7-c945