What’s Vulnerable › Vulnerabilities

CVE-2023-4774: WP-Matomo Integration (WP-Piwik) <= 1.0.28 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-22 · updated 2026-06-17
• Weakness: CWE-79

Description

The WP-Matomo Integration (WP-Piwik) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wp-piwik' shortcode in versions up to, and including, 1.0.28 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• matomoteam Connect Matomo – Analytics Dashboard for WordPress: through 1.0.28

References

• https://plugins.trac.wordpress.org/browser/wp-piwik/tags/1.0.28/classes/WP_Piwik/Widget/OptOut.php#L28
• https://plugins.trac.wordpress.org/changeset/2969705/wp-piwik#file164
• https://www.wordfence.com/threat-intel/vulnerabilities/id/faa4f041-4740-4ebb-afb3-10019ce571be?source=cve
• https://plugins.trac.wordpress.org/browser/wp-piwik/tags/1.0.28/classes/WP_Piwik/Widget/OptOut.php#L28
• https://plugins.trac.wordpress.org/changeset/2969705/wp-piwik#file164
• https://www.wordfence.com/threat-intel/vulnerabilities/id/faa4f041-4740-4ebb-afb3-10019ce571be?source=cve

Get alerted when CVE-2023-4774 or the next vulnerability affects your stack