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6.4

Youzify Plugin for WordPress: Malicious Code Injection Possible

CVE-2026-1559
Summary

The Youzify plugin for WordPress has a security weakness that allows attackers to inject malicious code into pages. This could happen when an attacker with a basic account accesses a page. To protect your site, update the plugin to the latest version or remove it if you don't use it.

Original title
The Youzify plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'checkin_place_id' parameter in all versions up to, and including, 1.3.6 due to insufficient input sanitization...
Original description
The Youzify plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'checkin_place_id' parameter in all versions up to, and including, 1.3.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-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: 18 Apr 2026 · Updated: 18 Apr 2026 · First seen: 18 Apr 2026