CVE-2026-1559: Youzify <= 1.3.6 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'checkin_place_id' Parameter
The Youzify plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'checkinplaceid' 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-1559?
CVE-2026-1559 is classified as a high severity vulnerability due to the potential for stored cross-site scripting attacks.
How do I fix CVE-2026-1559?
To fix CVE-2026-1559, update the Youzify WordPress plugin to version 1.3.7 or later where the vulnerability has been patched.
What type of vulnerability is CVE-2026-1559?
CVE-2026-1559 is a stored cross-site scripting (XSS) vulnerability affecting the Youzify plugin for WordPress.
Who is affected by CVE-2026-1559?
Any user of the Youzify WordPress plugin version 1.3.6 or earlier is susceptible to CVE-2026-1559.
What is the impact of CVE-2026-1559?
The impact of CVE-2026-1559 allows an attacker to inject malicious scripts that execute in the context of an authenticated user's browser, compromising data security.