CVE-2026-1559

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.

Score

CVSS 3.1 6.4 Medium

Status

Deferred - security@wordfence.com

Published

2026-04-18

Last modified

2026-04-20

Weaknesses

CWE-79

Affected products

• Social Network Membership Plugin For Wordpress (Youzify)
• User Profile (Youzify)
• Youzify Buddypress Community (Youzify)

References

• https://plugins.trac.wordpress.org/browser/youzify/tags/1.3.6/includes/public/core/class-youzify-wall.php#L109
• https://plugins.trac.wordpress.org/browser/youzify/tags/1.3.6/includes/public/core/wall/class-youzify-form.php#L506
• https://plugins.trac.wordpress.org/browser/youzify/trunk/includes/public/core/class-youzify-wall.php#L109
• https://plugins.trac.wordpress.org/browser/youzify/trunk/includes/public/core/wall/class-youzify-form.php#L506
• https://plugins.trac.wordpress.org/changeset/3483281/youzify/trunk/includes/public/core/wall/class-youzify-form.php
• https://plugins.trac.wordpress.org/changeset?old_path=%2Fyouzify/tags/1.3.6&new_path=%2Fyouzify/tags/1.3.7
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6bd69711-8303-4086-87c3-eb2935a89aff?source=cve