Scheduled Announcements Widget < 1.0 - 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: First you need to add an Announcement. [announcements scroll=‘" onmouseover=“alert(1)” style=“background:red;”’]