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Traccar CVE-2019-5748

CRITICAL
Improper Restriction of XML External Entity Reference (CWE-611)
2019-01-09 cve@mitre.org
9.8
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
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.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

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.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 1.7% exploitation probability (EPSS)

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AnalysisAI

In Traccar Server version 4.2, protocol/SpotProtocolDecoder.java might allow XXE attacks. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This XML External Entity (XXE) vulnerability could allow attackers to read arbitrary files or perform SSRF through XML processing.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Disable external entity processing in XML parsers, use JSON instead of XML where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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. In Traccar Server version 4.2, protocol/SpotProtocolDecoder.java might allow XXE attacks. Affected products include: Traccar Server. Version information: version 4.2.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
High
Availability
High

DescriptionNVD

In Traccar Server version 4.2, protocol/SpotProtocolDecoder.java might allow XXE attacks.

Threat Intelligence Overview

EPSS Score
1.7%
Top 25% exploitable
Data Quality
3 sources
Confidence: Low

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 CRITICAL
CISA KEV No
Public POC No
EPSS 1.7%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
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

51
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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

Affected Products (CPE)NVD

cpe:2.3:a:traccar:server:4.2:*:*:*:*:*:*:*
CVE-2024-31214 CRITICAL POC
9.6 Apr 10

Traccar is an open source GPS tracking system. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploi

CVE-2018-1000881 CRITICAL POC
9.8 Dec 20

Traccar Traccar Server version 4.0 and earlier contains a CWE-94: Improper Control of Generation of Code ('Code Injectio

CVE-2026-25648 HIGH POC
8.7 Feb 23

Traccar versions 6.11.1 and later allow authenticated users to inject malicious JavaScript into other users' browsers by

CVE-2026-25649 HIGH POC
7.3 Feb 23

Traccar GPS tracking system through version 6.11.1 allows authenticated users to hijack OAuth 2.0 authorization codes th

CVE-2025-68930 HIGH POC
7.1 Feb 23

Versions of the Traccar open-source GPS tracking system up to and including 6.11.1 contain a Cross-Site WebSocket Hijack

CVE-2026-23521 MEDIUM POC
6.5 Feb 23

Traccar GPS tracking system through version 6.11.1 allows authenticated users to conduct arbitrary file writes by settin

CVE-2024-7746 CRITICAL
9.5 Aug 13

Use of Default Credentials vulnerability in Tananaev Solutions Traccar Server on Administrator Panel modules allows Auth

CVE-2026-48745 CRITICAL
9.3 Jun 16

Silent configuration hijack in Traccar Client GPS tracking app (versions 9.7.19 and below) allows remote attackers to re

CVE-2026-108737 HIGH
7.6 Oct 11

Password reset tokens in Traccar through 6.16.0 are not bound to their intended purpose, allowing an attacker who posses

CVE-2026-52852 MEDIUM
6.5 Sep 17

Authenticated Traccar accounts that hold both group-management and report-request permissions can drive the server into

CVE-2026-27644 MEDIUM
6.5 May 05

Traccar versions 6.11.1 through 6.13.0 fail to escape user-controlled device and computed attributes in CSV export funct

CVE-2020-5246 MEDIUM
6.5 Jul 14

Traccar GPS Tracking System before version 4.9 has a LDAP injection vulnerability. Rated medium severity (CVSS 6.5), thi

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