Chained Quiz <= 1.3.2.5 is vulnerable to Cross Site Scripting (XSS)

The Chained Quiz plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.3.2.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only meaningfully impacts multi-site installations and installations where unfiltered_html has been disabled.