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Matomo CVE-2013-1844

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2013-03-21 secalert@redhat.com
XSS Matomo
4.3
CVSS 2.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-79
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

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 4.3 (MEDIUM). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 0.22%.
Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAI

Cross-site scripting (XSS) vulnerability in Piwik before 1.11 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affected Packages

composer matomo/matomo fix: 1.11
composer piwik/piwik fix: 1.11

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in composer

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Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Cross-site scripting (XSS) vulnerability in Piwik before 1.11 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. Affected products include: Matomo. Version information: before 1.11.

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

NVD PRIMARY 4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
M
Confidentiality
None
Integrity
P
Availability
None

DescriptionCVE.org

Cross-site scripting (XSS) vulnerability in Piwik before 1.11 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Threat Intelligence Overview

EPSS Score
0.2%
Top 55% exploitable
Data Quality
3 sources
Confidence: Low
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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
No
Human Impact· derived
Medium

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:matomo:matomo:*:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.0:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.1:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.2:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.3:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.4:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.5:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.6:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.7:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.7.1:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.8:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.8.4:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:matomo:matomo:1.9.2:*:*:*:*:*:*:*
+ 1 more

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References

Advisories & patches
REF http://piwik.org/blog/2013/03/piwik-1-11/ REF http://www.openwall.com/lists/oss-security/2013/03/12/4

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