Watu Quiz < 3.3.8.3 - Admin+ Stored XSS

2023-01-2400:00:00

Felipe Restrepo Rodriguez

135

watu quiz

admin+

stored xss

exploit

settings page

payload

error

access

0.001 Low

EPSS

Percentile

23.4%

JSON

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Put the following payload in one of the 'Words used for "quiz/quizzes"' settings: "autofocus onfocus=alert(/XSS/)//

Save (there will be an error), the XSS will be triggered when accessing the settings page again.

0.001 Low

EPSS

Percentile

23.4%

JSON

Related for WPEX-ID:67D84549-D368-4504-9FA9-B1FCE63CB967