Client Logo Carousel <= 3.0.0 - Contributor+ Stored XSS

The plugin does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

PoC

Note: 1. First, you need to add a Carousel Category with the following name: “); alert(1); (” 2. Second, you need to add a Client Logo with the exploit category. [wpaft_logo_slider category=‘“); alert(1); (”’]