GamiPress – Vimeo integration < 1.0.9 - 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

[gamipress_vimeo url=‘https://vimeo.com/" onmouseover=“alert(1)” style=“background:red;width:100px;height:100px;”’] Dependency: https://wordpress.org/plugins/gamipress