XSS in Gfi Helpdesk
CVE-2026-23752
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (3.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Gfi Helpdesk
- Gfi Software Helpdesk — versions 0
Weakness classification (CWE)
References
- gfi.ai/products-and-solutions/email-and-messaging-solutions/helpdesk/resources/… (vendor-advisory, Release Notes, patch)
- www.vulncheck.com/advisories/gfi-helpdesk-stored-xss-via-companyname-parameter (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-23752?
- CVE-2026-23752 is a medium-severity vulnerability in Gfi Helpdesk, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-04-20.
- How severe is CVE-2026-23752?
- Medium severity. CVSS v3 base score is 4.8 out of 10.