Popup Box Pro < 7.9.0 - Admin+ Stored XSS

2024-01-2200:00:00

John Jefferson Li

popup box pro

admin

stored xss

exploit

alert box

blog

5.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

Description The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

Create/edit a new popup and add the following payload in the Custom Content: <script>alert(1);</script>

Save, and notice the alert box appearing when visiting the blog