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CVE-2015-2839

14
FAUCET Score

CVE-2015-2839 describes a cross-site scripting (XSS) vulnerability in the Nitro API of Citrix NetScaler versions prior to 10.5 build 52.3nc. This flaw arises from an incorrect Content-Type in error messages, allowing remote attackers to inject malicious scripts via the file_name JSON member. With a CVSS score of 4.3, this vulnerability is of medium complexity to exploit and could lead to unauthorized client-side script execution, though it does not impact confidentiality or availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
10.5CPE matchmatch criteria
cpe:2.3:a:citrix:netscaler:10.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.99%
Probability of exploitation in next 30 days
EPSS Percentile
78.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0199 is in the 63rd percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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