CVE-2026-7634

Published May 28th, 2026

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CVSS v3

7.2

HIGH

CVSS v2

N/A

Affected

PROJECT

Description

The SlimStat Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'User-Agent' header in all versions up to, and including, 5.4.11 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. The show_complete_user_agent_tooltip setting must be explicitly enabled by an administrator (disabled by default) for the stored payload to be rendered and executed.

wp-slimstat/wp-slimstat

The leading web analytics plugin for WordPress. Track returning customers and registered users, monitor Javascript events, detect intrusions, analyze email campaigns. Thousands of WordPress sites are already using it.

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