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6.4

WordPress WP Visitor Statistics plugin allows attackers to inject malicious scripts

CVE-2026-4303
Summary

The WP Visitor Statistics plugin for WordPress has a security weakness that allows authorized users to inject malicious scripts into certain pages. This can happen if a contributor or higher-level user injects malicious code into the plugin's 'wsm_showDayStatsGraph' shortcode. To stay safe, update the plugin to the latest version or consider disabling it if you're not using it.

Original title
The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wsm_showDayStatsGraph' shortcode in all versions up to, and includi...
Original description
The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wsm_showDayStatsGraph' shortcode in all versions up to, and including, 8.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
nvd CVSS3.1 6.4
Vulnerability type
CWE-79 Cross-site Scripting (XSS)
Published: 8 Apr 2026 · Updated: 9 Apr 2026 · First seen: 8 Apr 2026