CVE-2015-2839

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-04-03 · updated 2026-06-17
Weakness: CWE-79

Description

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: 10.5 (and their updates)

References

http://packetstormsecurity.com/files/130931/Citrix-NITRO-SDK-xen_hotfix-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2015/Mar/128
http://www.securityfocus.com/archive/1/534935/100/0/threaded
http://www.securityfocus.com/bid/73311
https://www.securify.nl/advisory/SFY20140805/citrix_nitro_sdk_xen_hotfix_page_is_vulnerable_to_cross_site_scripting.html
http://packetstormsecurity.com/files/130931/Citrix-NITRO-SDK-xen_hotfix-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2015/Mar/128
http://www.securityfocus.com/archive/1/534935/100/0/threaded
http://www.securityfocus.com/bid/73311
https://www.securify.nl/advisory/SFY20140805/citrix_nitro_sdk_xen_hotfix_page_is_vulnerable_to_cross_site_scripting.html

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