Smart Slider 3 < 3.5.1.14 - Contributor+ Stored XSS

The plugin does not properly 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

[smartslider3 slider=“'-alert(/XSS/)-'a” slide=“1”] [smartslider3 slider=“'\x5d=1;alert(/XSS/)//” slide=“1”]