How severe is CVE-2023-6923?

CVE-2023-6923 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-6923 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6923?

CVE-2023-6923 affects Matomo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6923?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-6923 have an EU (EUVD) identifier?

Yes. CVE-2023-6923 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59122.

When was CVE-2023-6923 published?

CVE-2023-6923 was published on 2024-02-29 and last updated on 2026-06-17.

CVE-2023-6923

CVE-2023-6923 is a medium-severity vulnerability in Matomo with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-59122
Weakness: CWE-79
Affected product: Matomo
Published: 2024-02-29
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-6923?: CVE-2023-6923 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-6923 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6923?: CVE-2023-6923 affects Matomo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6923?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6923 have an EU (EUVD) identifier?: Yes. CVE-2023-6923 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59122.
When was CVE-2023-6923 published?: CVE-2023-6923 was published on 2024-02-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:matomo:matomo:*:*:*:*:*:wordpress:*:*

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