WordPress Plugin Vulnerabilities
Image optimization & Lazy Load < 3.3.2 - Admin+ Stored Cross-Site Scripting
Description
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.
Proof of Concept
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
Affects Plugins
Fixed in version 3.3.2
References
Classification
Miscellaneous
Original Researcher
Mika
Submitter
Mika
Submitter website
Submitter twitter
Verified
Yes
Timeline
Publicly Published
2022-03-21 (about 1 years ago)
Added
2022-03-21 (about 1 years ago)
Last Updated
2022-04-11 (about 11 months ago)