What is CVE-2023-6923?

CVE-2023-6923 is a medium-severity vulnerability in Matomo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-02-29.

How severe is CVE-2023-6923?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2023-6923 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Matomo

CVE-2023-6923

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (39.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Matomo
Matomoteam Matomo Analytics – Powerful, Privacy-first Insights For Wordpress — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2023-6923?: CVE-2023-6923 is a medium-severity vulnerability in Matomo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-02-29.
How severe is CVE-2023-6923?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-6923 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.