What’s Vulnerable › Vulnerabilities

CVE-2026-4303: WP Visitor Statistics (Real Time Traffic) <= 8.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'height' Shortcode Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-08 · updated 2026-07-20
• Weakness: CWE-79

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.

Affected products

• WP Visitor Statistics (Real Time Traffic): through 8.4

References

• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/wsm_init.php#L208
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/wsm_statistics.php#L2272
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/wsm_statistics.php#L2392
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_init.php#L208
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_statistics.php#L2272
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_statistics.php#L2392
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3498538%40wp-stats-manager&new=3498538%40wp-stats-manager&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/3b6916d3-3944-43a2-8d5e-424f86c753ad?source=cve

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