What’s Vulnerable › Vulnerabilities

CVE-2026-23752: GFI HelpDesk < 4.99.9 Stored XSS via companyname Parameter

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-20 · updated 2026-10-26
• Weakness: CWE-79

Description

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.

Affected products

• GFI Software HelpDesk: before 4.99.9 — fixed in 4.99.9

How to fix

Upgrade to a fixed version: GFI Software HelpDesk 4.99.9. Check the vendor advisory for mitigations.

References

• https://gfi.ai/products-and-solutions/email-and-messaging-solutions/helpdesk/resources/product-releases
• https://www.vulncheck.com/advisories/gfi-helpdesk-stored-xss-via-companyname-parameter

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