Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Miguel Sirvent Magic Embeds wp-embed-facebook allows Stored XSS.This issue affects Magic Embeds: from n/a through <= 3.1.2.
The Magic Embeds WordPress plugin before 3.1.2 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