Vulnerability in WP Visitor Statistics (Real Time Traffic) — CVE-2026-111370

What to do now

Update WP Visitor Statistics (Real Time Traffic) to 8.9.1 or later.

Affected versions

• Everything up to and including 8.9.0

The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'os (also browser, res)' parameter in all versions up to, and including, 8.9.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

This description is reproduced verbatim from the public vulnerability record.

• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.7.1/includes/wsm_db.php#L231
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.7.1/includes/wsm_init.php#L563
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.7.1/includes/wsm_requests.php#L311
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.7.1/includes/wsm_statistics.php#L3957
• https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.7.1/wp-stats-manager.php#L110
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3783278%40wp-stats-manager&new=3783278%40wp-stats-manager

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.