Image optimization & Lazy Load < 3.3.2 - Admin+ Stored Cross-Site Scripting

2022-03-2100:00:00

Mika

0.001 Low

EPSS

Percentile

21.6%

JSON

The plugin does not sanitise and escape its “Lazyload background images for selectors” settings, which could allow high privilege users such as admin to perform Cross-Site scripting attacks even when the unfiltered_html capability is disallowed.

Put the following payload in the Media > Optimole > Advanced > Lazyload > Lazyload background images for selectors settings: </sCriPT><sVg ONLoAd=confirm(1)//

The XSS will be triggered in each page of the frontend, as well as in the admin dashboard