CVE-2015-2839: Citrix NetScaler

Medium severity, CVSS 4.3. EPSS: 2% chance of exploitation in the next 30 days.

The Nitro API in Citrix NetScaler before 10.5 build 52.3nc uses an incorrect Content-Type when returning an error message, which allows remote attackers to conduct cross-site scripting (XSS) attacks via the file_name JSON member in params/xen_hotfix/0 to nitro/v1/config/xen_hotfix.

Affected products

• Citrix NetScaler: version 10.5 only

Published 2015-04-03. Last modified 2026-06-17.