Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/ws
- https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/ws
- https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/ws
- https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_i
- https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_s
- https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_s
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3b6916d3-3944-43a2-8d5
FAQ
What is CVE-2026-4303?
CVE-2026-4303 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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,...
How severe is CVE-2026-4303?
CVE-2026-4303 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4303?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.