CVE-2023-6923 - CVE House

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Status published Medium CVE-2023-6923

Matomo <= 4.15.3 - Reflected Cross-Site Scripting via idsite

6.1 CVSS

Vulnerability Description

The Matomo Analytics – Ethical Stats. Powerful Insights. plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the idsite parameter in all versions up to, and including, 4.15.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Felipe Restrepo Rodriguez

References

More from matomoteam

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WordPress Matomo Analytics plugin <= 5.1.1 - Cross Site Request Forgery (CSRF) leading to Notice Dismissal vulnerability

WP-Matomo Integration (WP-Piwik) <= 1.0.28 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

Affected Vendor

matomoteam

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Affected Software

Matomo Analytics – Powerful, Privacy-First Insights for WordPress

Vulnerable Versions:

0

Timeline

Official Publish: February 20th, 2024

Last Modified: April 8th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement