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Xenmobile Server CVE-2017-9231

HIGH
Improper Restriction of XML External Entity Reference (CWE-611)
2017-06-16 cve@mitre.org
XXE Citrix Xenmobile Server
7.5
CVSS 3.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-611
OWASP Top 10:2025
A02:2025 - Security Misconfiguration
ASVS 5.0
V13 - Configuration XML external entity prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.40%.
Exploit ScenarioDerived

A remote attacker could read arbitrary files or perform SSRF through XML processing by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

XML external entity (XXE) vulnerability in Citrix XenMobile Server 9.x and 10.x before 10.5 RP3 allows attackers to obtain sensitive information via unspecified vectors. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Disable external entity processing in XML parsers, use JSON instead of XML where possible.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as XML External Entity (XXE) (CWE-611), which allows attackers to read arbitrary files or perform SSRF through XML processing. XML external entity (XXE) vulnerability in Citrix XenMobile Server 9.x and 10.x before 10.5 RP3 allows attackers to obtain sensitive information via unspecified vectors. Affected products include: Citrix Xenmobile Server. Version information: before 10.5.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

XML external entity (XXE) vulnerability in Citrix XenMobile Server 9.x and 10.x before 10.5 RP3 allows attackers to obtain sensitive information via unspecified vectors.

Threat Intelligence Overview

EPSS Score
0.4%
Top 39% exploitable
Data Quality
3 sources
Confidence: Low
Citrix NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

XML External Entity Injection HIGH

XML External Entity (XXE) attacks exploit XML parsers that process Document Type Definitions (DTDs) without proper restrictions.

Affected Products (CPE)CVE.org

cpe:2.3:o:citrix:xenmobile_server:9.0:*:*:*:*:*:*:*
cpe:2.3:o:citrix:xenmobile_server:10.0:*:*:*:*:*:*:*
cpe:2.3:o:citrix:xenmobile_server:10.1:*:*:*:*:*:*:*
cpe:2.3:o:citrix:xenmobile_server:10.3:*:*:*:*:*:*:*
cpe:2.3:o:citrix:xenmobile_server:10.3.5:*:*:*:*:*:*:*
cpe:2.3:o:citrix:xenmobile_server:10.3.6:*:*:*:*:*:*:*
cpe:2.3:o:citrix:xenmobile_server:10.4:*:*:*:*:*:*:*
cpe:2.3:o:citrix:xenmobile_server:10.5:*:*:*:*:*:*:*

More in Xenmobile Server

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CVE-2018-10653 CRITICAL POC
9.8 May 23

There is an XML External Entity (XXE) Processing Vulnerability in Citrix XenMobile Server 10.8 before RP2 and 10.7 befor
CVE-2018-18013 HIGH POC
7.8 Oct 24

* Xen Mobile through 10.8.0 includes a service listening on port 5001 within its firewall that accepts unauthenticated i
CVE-2020-8209 HIGH POC
7.5 Aug 17

Improper access control in Citrix XenMobile Server 10.12 before RP2, Citrix XenMobile Server 10.11 before RP4, Citrix Xe
CVE-2020-8212 CRITICAL
9.8 Aug 17

Improper access control in Citrix XenMobile Server 10.12 before RP3, Citrix XenMobile Server 10.11 before RP6, Citrix Xe
CVE-2020-8211 CRITICAL
9.8 Aug 17

Improper input validation in Citrix XenMobile Server 10.12 before RP3, Citrix XenMobile Server 10.11 before RP6, Citrix

CVE-2018-10648 CRITICAL
9.8 May 23

There are Unauthenticated File Upload Vulnerabilities in Citrix XenMobile Server 10.8 before RP2 and 10.7 before RP3. Ra
CVE-2018-18014 MEDIUM POC
4.8 Oct 24

* Lack of authentication in Citrix Xen Mobile through 10.8 allows low-privileged local users to execute system commands

CVE-2018-10654 HIGH
8.1 May 23

There is a Hazelcast Library Java Deserialization Vulnerability in Citrix XenMobile Server 10.8 before RP2 and 10.7 befo
CVE-2018-10650 HIGH
7.8 May 23

There is an Insufficient Path Validation Vulnerability in Citrix XenMobile Server 10.8 before RP2 and 10.7 before RP3. R
CVE-2020-8253 HIGH
7.5 Sep 18

Improper authentication in Citrix XenMobile Server 10.12 before RP2, Citrix XenMobile Server 10.11 before RP4, Citrix Xe
CVE-2020-8210 HIGH
7.5 Aug 17

Insufficient protection of secrets in Citrix XenMobile Server 10.12 before RP3, Citrix XenMobile Server 10.11 before RP6
CVE-2018-10652 HIGH
7.5 May 23

There is a Sensitive Data Leakage issue in Citrix XenMobile Server 10.7 before RP3. Rated high severity (CVSS 7.5), this

Same weakness CWE-611 – Improper Restriction of XML External Entity Reference

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CVE-2025-58360 CRITICAL POC
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CVE-2025-2775 CRITICAL POC
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CVE-2025-2776 CRITICAL POC
9.3
CVE-2017-12629 CRITICAL POC
9.8
CVE-2016-9563 MEDIUM POC
6.5
CVE-2012-3363 CRITICAL POC
9.1
CVE-2016-4264 HIGH POC
8.6

Same technique XXE

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CVE-2013-5014 HIGH POC
7.5
CVE-2015-0923 MEDIUM POC
5.0
CVE-2014-0644 HIGH POC
7.8

References

Advisories & patches
ADVISORY https://support.citrix.com/article/CTX220138 REF http://www.securityfocus.com/bid/98995 REF http://www.securitytracker.com/id/1038704

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